A water trough has vertical ends that have the shape of a half circle with radius 10 meters. The level of water is 5 meters below the surface of the water trough Sketch one of the ends of the water trough and find the fluid force on the end of the trough

The formula for one variable F is 77°C, E = 25 kg/ms², L = 19.6 m,

The solution for each of the given problems is shown below:

Solve for F: C = 5/9(F-32); If C= 25°C

We have C = 5/9(F-32); If C= 25°C

Now, we can substitute C with the given value of 25°C.

therefore: 25 = 5/9(F - 32)

Now, we can solve for F.

Therefore: F - 32 = (9/5) × 25F - 32 = 45F = 45 + 32F = 77°C.

So, the answer is F = 77°C.

Solve for E IF P=; IF M=4KG AND P =100KG/MS

The formula is given as P = M × E

Therefore: E = P/M

Substituting the values: E = 100/4E = 25 kg/ms²

So, the answer is E = 25 kg/ms².

Solve for L IF T=2 AND IF G=9.8 M/S² AND T=2S

The formula is given as L = 1/2GT²

Substituting the values: L = 1/2(9.8)(2²)L = 1/2(9.8)(4)L = 19.6 m

So, the answer is L = 19.6 m.

Solve for K:

IF T=2PI AND IF

M=3.0KG AND T +9.0S

The formula is given as K = 2π/T × (Mg + F)

Given, T = 2π, M = 3 kg, and T + 9 s

We have to find F.

Substituting the given values:

T = 2π = 6.28 s

M = 3 kg

F = K × T/(2π) - MgF = K × 6.28/(2π) - 3 × 9.8F = K × 2 - 29.4

Therefore, the answer is F = (K × 2) - 29.4

Solve for y2: 1/2MV²/1+MGY₁=1/2MV²/2+MGY₂

We have to solve for y2.

So, we need to use the given formula and isolate y2.

Therefore: 1/2MV²/1+MGY₁=1/2MV²/2+MGY₂

Multiplying both sides by

(2 + MGY₂): 1/2MV²(2 + MGY₂)/(1+MGY₁) = 1/2MV²

Dividing both sides by 1/2MV²: (2 + MGY₂)/(1+MGY₁) = 1

Now, cross-multiply to get rid of the denominators:

2 + MGY₂ = 1 + MGY₁MGY₂ - MGY₁ = 1 - 2MY₂(G - Y₁) = (1/2V²)Y₂ = (1/2V²)(G - Y₁)

Therefore, the answer is Y₂ = (1/2V²)(G - Y₁).

To learn more about one variable:

https://brainly.com/question/31340107

#SPJ11

The formula to calculate the voltage across a capacitor is given by:

[tex]V = Vf (1 - e^(-t/RC))[/tex].

where, V = Voltage across capacitor

Vf = Final voltage across capacitor

R = Resistance

C = Capacitance of the capacitor

t = time In the given problem, the resistance, R is to be calculated.

Using the given values, we can rearrange the formula to solve for

[tex]R.R = -t/(Cln((V - Vf)/Vf))[/tex]

On substituting the values, we get,

[tex]R = -3.00 s/(13.0 μF ln((10.0 V - 4.00 V)/4.00 V))= 117.7 Ω[/tex]

To know more about resistance visit:

https://brainly.com/question/32301085

#SPJ11

Reference DirectionIn electronic circuits, current is the flow of charge. Electrons flow from the negative end of a battery to the positive end, as we've seen. However, the directions of voltage and current are not the same. The voltage in a circuit, for example, might be supplied by a battery. The positive end of the battery is at a higher voltage than the negative end, according to the battery's polarity.

The reference direction in a circuit is the direction of current flow chosen to define the polarity of the voltage and is denoted by an arrow.Reference PolarityThe reference polarity of a circuit is the direction in which the current flows. The reference polarity, unlike the reference direction, can be reversed by flipping the direction of current flow. For example, if we switch the positive and negative connections on the battery,

the reference polarity of the circuit is reversed. The voltage and current in the circuit are still present, but their polarities are reversed.Passive Reference ConfigurationA passive reference configuration is a system in which there is no net gain of energy or power, but in which an input signal causes a response. In this configuration, a sensor, such as a thermocouple, generates a voltage in response to an external stimulus, such as temperature. The voltage produced is in direct proportion to the temperature, and the sensor's output is measured with an instrument such as a voltmeter or oscilloscope.The passive reference configuration is utilized in all kinds of electronic circuits, from thermometers and thermostats to electronic filter design and control systems.

To know more about DirectionIn visit:

https://brainly.com/question/23162078

#SPJ11

The acceleration at time t = 3.47 seconds is -2.077 m/s². Rounded to the nearest hundredth, this is -0.605 m/s².

The acceleration at time t = 3.47 seconds is -0.605 m/s². Given, the velocity v, in meters per second, is given as a function of time t, in seconds, by the equation:v(t) = -0.605t² + 2.11t - 8.15 The acceleration is the derivative of velocity.

Therefore, we can differentiate v(t) with respect to time t to obtain acceleration a(t).

Differentiating v(t) with respect to time t: a(t) = v'(t) = d/dt (-0.605t² + 2.11t - 8.15)

Now, the derivative of -0.605t² is -1.21t, the derivative of 2.11t is 2.11, and the derivative of -8.15 is zero.

Therefore, the acceleration a(t) is given by:a(t) = -1.21t + 2.11

The acceleration at time t = 3.47 seconds:a(3.47) = -1.21(3.47) + 2.11a(3.47) = -4.187 + 2.11a(3.47) = -2.077 m/s²

Therefore, the acceleration at time t = 3.47 seconds is -2.077 m/s². Rounded to the nearest hundredth, this is -0.605 m/s².

To know more about acceleration please refer:

https://brainly.com/question/460763

#SPJ11

Suppose a planet in our solar system has an orbital period of 7 years, iits average distance from the sun (length of

its semimajor axis) would approximately 3.03 astronomical units.

If a planet has an orbital period of 7 years, the length of its semimajor axis can be determined using Kepler's third law. Kepler's third law states that the square of the orbital period is proportional to the cube of the average distance between the planet and the sun. This can be expressed as T^2 ∝ a^3, where T is the orbital period and a is the average distance from the sun. Solving for a, we get a = (T^2 * k)^(1/3), where k is a constant.

Using the value of T as 7 years, we can find the length of the semimajor axis. Plugging in the values, we get a = (7^2 * k)^(1/3).

To determine the value of k, we can use the fact that the semimajor axis of Earth's orbit is approximately 1 astronomical unit (AU).

This means that (1^2 * k)^(1/3) = 1 AU, or k = 1 AU^3. Substituting this value of k, we get a = (7^2 * 1 AU^3)^(1/3) = 3.03 AU.
Therefore, the average distance of the planet from the sun is approximately 3.03 astronomical units.

Learn more about Kepler's third law at:

https://brainly.com/question/30404084

#SPJ11

Determine U if the cube falls with an orientation to minimize the drag force, we need to use buoyancy. The formula for the buoyant force is given by Fb = ρVg.

V is the volume of the object displaced by the water, ρ is the density of the liquid (water), and g is the acceleration due to gravity. We can use this formula to find the weight of the cube in water.

Let W be the weight of the cube in air, then the weight of the cube in water is given by W - Fb. The buoyant force Fb is given by

Fb = ρVg

= (1800 kg/m³)(0.125 m³)(9.81 m/s²)

= 2212.5 N.

The weight of the cube in air is given by

W = mg

= (500 N)/(9.81 m/s²)

= 50.91 kg.

The weight of the cube in water is given by W - Fb = 50.91 kg - 2212.5 N = -2161.59 N.

We can set these two forces equal to each other and solve for U:

FD = W - Fb(1/2)ρCU²A

= W - FbU

= sqrt((2(W - Fb))/(ρCA))

Plugging in the values, we get

U = sqrt((2((50.91 kg)(9.81 m/s²) - 2212.5 N))/(1000 kg/m³)(0.25 m²)(0.8))

≈ 1.44 m/s.

The cube falls at a constant speed of 1.44 m/s when oriented to minimize the drag force.

To know more about density visit:

https://brainly.com/question/29775886

#SPJ11

If he exerts 450 N on the crate parallel to the ramp, which makes an angle of 35.0° with the horizontal, then 630,406 J is the total work he does in pushing it 830 m.

The amount of energy that is transmitted to or from an item is measured as work in physics. It is described as being the result of the force applied to an object and the length of time it is applied. Due to the fact that work is a scalar quantity, it has simply magnitude and no direction. Depending on the force's direction and the object's displacement, work might be positive or negative. In the SI system of units, joules (J) are used to represent work.

work = force x distance x cos(θ)

work{crate}= 450 N x 830 m x cos(35.0°)

work{crate} = 310,335 J

work = force x distance x sin(θ)

work{body} = (80.0 kg x 9.81 m/s^2) x (830 m x sin(35.0°))

work{body} = 320,071 J

work{total}= work_crate + work_body

work{total} = 310,335 J + 320,071 J

work{total} = 630,406 J

To know more about work, here:

https://brainly.com/question/14813637

#SPJ4

a) The phase velocity is 2c / 3

b) The wavelengths of the two media are λ₁ = λ₀ / 2 and λ₂ = λ(2/3) λ₀

c) The reflection and transmission coefficients are -1/7 and 4/7 respectively with standing wave ratio S = 1/4.

Given data:

A)

The phase velocity of a wave in a medium is given by v = c / √(εr), where c is the speed of light in vacuum and εr is the relative permittivity of the medium.

For the first medium with εr₁ = 4, the phase velocity is v₁ = c / √(εr₁) = c / √(4) = c / 2.

For the second medium with εr₂ = 2.25, the phase velocity is v₂ = c / √(εr₂) = c / √(2.25) = c / 1.5 = 2c / 3.

B)

The wavelength of a wave in a medium is given by λ = v / f, where λ is the wavelength, v is the phase velocity, and f is the frequency of the wave.

In the first medium:

λ₁ = v₁ / f = (c / 2) / 10¹⁰ = c / (2 x 10¹⁰) = λ₀ / 2, where λ₀ is the wavelength in vacuum.

In the second medium:

λ₂ = v₂ / f = (2c / 3) / 10¹⁰ = (2/3) (c / 10¹⁰) = (2/3) λ₀.

C)

The reflection coefficient (R) and transmission coefficient (T) can be calculated using the formulas:

R = (Z₂ - Z₁) / (Z₂ + Z₁),

T = 2Z₂ / (Z₂ + Z₁),

S = |R / T|,

where Z₁ and Z₂ are the characteristic impedances of the two media, respectively.

Since both media are non-magnetic and non-conductive, the characteristic impedance is given by Z = √(μr / εr), where μr is the relative permeability of the medium.

For the first medium with εr₁ = 4 and μr₁ = 1, Z₁ = √(μr₁ / εr₂) = √(1 / 4) = 1/2.

For the second medium with εr₂ = 2.25 and μr₂ = 1, Z₂ = √(μr₂ / εr₂) = √(1 / 2.25) = 2/3.

Using these values, we can calculate the reflection coefficient:

R = (Z₂ - Z₁) / (Z₂ + Z₁) = (2/3 - 1/2) / (2/3 + 1/2) = -1/7.

The transmission coefficient is given by:

T = 2Z₂ / (Z + Z₁) = 2(2/3) / (2/3 + 1/2) = 4/7.

So, the standing wave ratio (S) is the absolute value of the reflection coefficient divided by the transmission coefficient:

S = |R / T| = |-1/7 / (4/7)| = 1/4.

Hence, the standing wave ratio S = 1/4.

To learn more about standing wave ratio click:

https://brainly.com/question/32307729

#SPJ4

The addition of a nonzero cosmological constant affects the expansion of the universe by introducing a repulsive gravitational force, counteracting the attractive force of matter and radiation.

The addition of a nonzero cosmological constant affects the expansion of the universe by introducing a repulsive gravitational force, counteracting the attractive force of matter and radiation. This leads to an accelerated expansion of the universe.

In the context of the Friedmann-Lemaître-Robertson-Walker (FLRW) cosmological model, which describes the large-scale structure and dynamics of the universe, the expansion rate is determined by the critical density and the components of the universe, including matter, radiation, and dark energy.

The cosmological constant, denoted by Λ (lambda), is a term in the Einstein field equations that represents a form of dark energy associated with vacuum energy. When Λ is nonzero, it contributes a constant energy density to the universe.

In the presence of a nonzero cosmological constant, the expansion of the universe accelerates over time. This means that the distances between galaxies, galaxy clusters, and other cosmic structures increase at an accelerating rate. This accelerated expansion has been observed through various cosmological measurements, including the redshift of distant galaxies and the cosmic microwave background radiation.

The inclusion of a cosmological constant provides a mechanism to explain the observed accelerated expansion and is consistent with observations of the large-scale structure of the universe.

Learn more about cosmological constant from the given link:

https://brainly.com/question/29427155

#SPJ11

The formula for the trajectory of an object modeled with ideal projectile motion is y = xtanθ – (gx²) / 2v²cos²θ.

Projectile motion is a type of motion experienced by objects that are launched into the air and are subject to gravity and air resistance. In ideal projectile motion, the air resistance is neglected, and only the force of gravity is considered. The trajectory of the object is given by the formula:

y = xtanθ – (gx²) / 2v²cos²θ where y is the height of the object, x is the horizontal distance traveled by the object, θ is the angle of projection, v is the initial velocity of the object, and g is the acceleration due to gravity. When the object is launched at an angle of 45 degrees, the horizontal distance traveled by the object is equal to the vertical distance traveled by the object. Therefore, the maximum range of the projectile is achieved at an angle of 45 degrees.

Learn more about projectile motion here:

https://brainly.com/question/12860905

#SPJ11

ν = ΔE / h

Now, substitute the appropriate values and calculate the result.

To calculate the energy and frequency of the lowest energy line in the Balmer series for hydrogen atoms transitioning from higher energy levels to n=5, we can use the Rydberg formula:

1/λ = [tex]R_H[/tex] * (1/n₁² - 1/n₂²)

where λ is the wavelength of the emitted light, R_H is the Rydberg constant for hydrogen (approximately 1.097 × [tex]10^7 m^{-1}[/tex]), n₁ is the initial energy level, and n₂ is the final energy level.

In this case, we have n₁ = higher energy level and n₂ = 5.

First, we need to determine the energy difference between the initial energy level and n=5. The energy difference (ΔE) can be calculated using the formula:

ΔE =[tex]E_{initial} - E_{final}[/tex]

   = -13.6 eV / n₁² - (-13.6 eV / 5²)

Next, we convert the energy difference to joules:

ΔE (in joules) = ΔE (in eV) * 1.6 × [tex]10^{-19 }[/tex]J/eV

Finally, we can calculate the frequency (ν) using the equation:

ν = ΔE / h

where h is the Planck's constant (approximately 6.63 ×[tex]10^{-34 }[/tex]J·s).

Let's calculate the values:

ΔE = (-13.6 eV / n₁²) - (-13.6 eV / 5²)

   = (-13.6 eV / n₁²) - (-13.6 eV / 25)

ΔE (in joules) = ΔE (in eV) * 1.6 × [tex]10^{-19}[/tex] J/eV

ν = ΔE / h

To know more about Rydberg visit:

brainly.com/question/32679031

#SPJ11

Given that a person exposed to fast neutrons receives a radiation dose of 300 rem on part of his hand, affecting 25 g of tissue and the RBE of these neutrons is 10. We need to find the number of rads he received.

RBE stands for relative biological effectiveness, which is a comparative expression of the ability of radiation to produce a biological reaction. RBE is used as a multiplying factor to calculate the equivalent dose, measured in Sieverts (Sv), that would be produced by an equal amount of absorbed dose by a type of radiation other than X-rays or gamma rays.

When dealing with other forms of ionizing radiation, the concept of RBE is essential to calculate equivalent doses. In this case, the individual was exposed to fast neutrons, which have an RBE of 10. Therefore the equivalent dose is calculated as:

Dose equivalent (rem) = Absorbed dose (rad) x Quality Factor

Since RBE is a quality factor for neutron radiation, the equivalent dose can be determined as:

E = 300 rem (dose equivalent) = 25g tissue (absorbed dose) x 10 (RBE)

Therefore, the absorbed dose in rads can be calculated by using the formula;

Dose equivalent (rem) = Absorbed dose (rad) x Quality Factor

From this formula, we can rearrange and find the absorbed dose as follows;

Absorbed dose (rad) = Dose equivalent (rem) / Quality Factor

Given that the individual received a radiation dose of 300 rem, the absorbed dose can be calculated as:

Absorbed dose (rad) = 300 rem / 10 = 30 rad

Hence, the individual received 30 rad. Therefore, the correct option is D.

Learn more about ionizing radiation: https://brainly.com/question/30541298

#SPJ11

It takes 5 seconds for the bat to come out of the well.

Given the position vector of a bat as r = 5cos(3/2πt)i + 5sin(3/2πt)j + 4tk, we have to calculate the time taken by the bat to come out of the well. The depth of the well is given to be 20 m. So, let's start with the solution.

The position vector of the bat is given by r = 5cos(3/2πt)i + 5sin(3/2πt)j + 4tk.

In this equation, the position vector of the bat r is the sum of three vectors: r = r_1 + r_2 + r_3, where r_1 = 5cos(3/2πt)i, r_2 = 5sin(3/2πt)j and r_3 = 4tk.

The bat is coming out of the well so we have to calculate the time it takes for the bat to come out of the well. For this, we will set the value of z equal to 20.

The position vector of the bat at the mouth of the well is: r = 5cos(3/2πt)i + 5sin(3/2πt)j + 20k

We need to solve this equation for t, which will give us the time taken by the bat to come out of the well.

Equating z-coordinate to 20: 20 = 4t⇒ t = 5 seconds

Therefore, it takes 5 seconds for the bat to come out of the well.

Therefore, the correct option is (d) 5 seconds.

To know more about vector refer to:

https://brainly.com/question/30817683

#SPJ11

1. Yes, when the phase emf waveform of an ac machine is improved by using distributed or short-pitch windings, the emf waveform of each conductor in the coils is also improved.

2. And explain the reason. In order to connect the coil groups corresponding to different poles in series for 3-phase double-layer windings, we need to consider the following things: Series connection of the coil groups can be done in two ways: one is simplex and the other is multiplex.

In the simplex lap winding, two groups of coils (one group for each phase) are connected in series per pole. As a result, the number of paths is equal to the number of poles.In the multiplex lap winding, the coils are connected in series to form multiple paths. A multiplex lap winding with q paths has q/2 coil groups per phase.

The reason for connecting the coil groups corresponding to different poles in series for 3-phase double-layer windings is to generate a rotating magnetic field. The rotating magnetic field is created because each phase of the winding is offset by 120 electrical degrees with respect to each other. This causes the magnetic field produced by one phase to interact with the other two phases, creating a rotating magnetic field.

To learn more about waveform visit;

https://brainly.com/question/31528930

#SPJ11

Work = 98,000 J, Power required by the pump = 980 MW, hp = 1.31 x 10⁶

b) The work done to raise one kilogram of water from the bottom of the well to the surface is given by the product of force, distance, and gravity. It is given by the formula:

W = Fdgh where, F is the force exerted by the water, d is the distance it is lifted, and g is acceleration due to gravity.

On solving, we get W = (1000 kg/m³)(9.8 m/s²)(10 m)= 98,000 J.

c) The power required by the pump to raise 1000 kg of water per minute is given by:

W = FdghP = W/tP

= (1000 kg/min)(98,000 J/kg)P = 9.8 x 10⁸ W

= 980 MW.

d) The horsepower (hp) required by the pump is given by:

P = 9.8 x 10⁸ W/746 = 1.31 x 10⁶ hp.

Therefore, W = 98,000 J, P = 980 MW, hp = 1.31 x 10⁶.

Learn more about Power here:

https://brainly.com/question/30519200

#SPJ11

The disadvantage of wind energy is that wind turbines can be noisy and the force of high blades can harm wildlife.

The disadvantages of wind energy include potential noise pollution caused by wind turbines and the risk of harm to wildlife due to the force of high blades. However, it is important to note that wind turbines being tall and occupying small plots of land are not considered disadvantages but rather requirements for efficient wind energy generation.

Additionally, large wind farms are needed to generate enough electricity to meet the demands of entire communities, which can present challenges in terms of land availability and infrastructure. Despite these drawbacks, wind energy remains a valuable and sustainable source of renewable energy, contributing to reducing greenhouse gas emissions and mitigating climate change.

To know more about turbines,

https://brainly.com/question/14903042#

#SPJ11

The main topic of the question is determining the type of process and finding the initial and final temperatures of a gas undergoing a specific process.

Based on the given information, we have 6.0×10^−3 mol of gas undergoing a process. To determine the type of process, we need to examine the conditions shown in Part A of Figure 1.

The possible types of processes mentioned are:

Isobaric: A process at constant pressure.

Isothermal: A process at constant temperature.

Isochoric: A process at constant volume.

To identify the process type, we need more information from Part A of the figure. However, since the figure is not provided, we cannot definitively determine the type of process.

Moving on to Part B, we are given that the constant volume of the process is Vc = 225 cm^3. We are asked to find the initial and final temperatures, expressed using three significant figures.

Since the process is at constant volume (isochoric), we can use the ideal gas law to solve for the temperatures. The ideal gas law states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

Since the volume (V) is constant, the equation simplifies to P = nRT/V. Since we do not have the pressure information, we cannot determine the initial or final temperature using the given information.

Therefore, without additional data or the figure mentioned in the question, we cannot provide the specific answers regarding the type of process and the initial and final temperatures.

learn more about

brainly.com/question/1189380

Gas process.

SPJ11

A fluctuating needle could indicate a variety of issues, including mechanical or electrical problems with the gauge, an issue with the system being measured, or environmental variables affecting the measurement. When a needle is fluctuating, it can be difficult to determine the correct reading. If the needle on the pressure gauge(GP) is fluctuating, read and record the valve located in the center between the high and low extremes.

A pressure gauge is a device that determines and measures the pressure(P) of a gas or liquid in a closed container. A pressure gauge measures pressure by means of a bourdon tube(BT), which is a mechanical system. When pressure is put on it, it deforms. This deformation is calculated by a system of gears and springs and displayed on a dial.

The following are some of the most common types of pressure gauges: Manometer(Mr) is a kind of pressure gauge that works by comparing the pressure of a liquid in a U-shaped tube to the pressure of the gas being measured, which compresses the liquid. Piezometer(Pr) is a form of pressure gauge that works by measuring the weight of the liquid in a container, which is proportional to the pressure being measured. Bourdon Tube: The most common type of pressure gauge is the bourdon tube. It works by comparing the pressure of a gas or liquid in a chamber to a spring inside a tube. Wheel Gauge is a kind of pressure gauge that works by converting pressure into a rotary motion. This rotary motion is measured by a series of gears, which then display the pressure.

What is a fluctuating needle?

A fluctuating needle(FN) is a needle that is not steady on a gauge or instrument.

To know more about Piezometer visit:

https://brainly.com/question/32741897

#SPJ11

When a force of 20 N is applied at an angle of 30 degree to a box and it moves 10 m horizontally, the work done on the box by F during the displacement is 173 J. Work is defined as the energy transferred when a force is applied to an object and causes it to move in the direction of the force.

The formula to calculate work done is: W = F * d * cosθ where, W is work done F is the force applied d is the distance over which the force is appliedθ is the angle between the force and the displacement of the object W = 20 * 10 * cos30°= 173 J

The work done on the box by F during the displacement is 173 J.

To know more about force visit:

https://brainly.com/question/30507236

#SPJ11

Q= = 1/3 kW/°C × (75°C - Tsensed) + 5 kW. The output power equation can be obtained by using the following expression: Q = Kp (Vset - Vt) Where, Q = Output power, Kp = Proportional gain, Vset = Set-point temperature in volts, Vt = Sensed temperature in volts

Thermostat output voltage decreases linearly with temperature between 90F (32C) and 60F (16C) for the nominal thermostat set-point of 75F (24C)To convert F to C, use the following expression: T(°C) = (T(°F) - 32) × 5/9, Temperature range can be converted as follows: 90°F = 32.2°C, 60°F = 15.6°C, 75°F = 23.9°C

Then, the voltage range can be calculated as follows:

V90 = 5 - (32.2 - 60) × (5/30)

= 3.14 V

V60 = 5 - (15.6 - 60) × (5/30)

= 4.16 V

For any sensed voltage, Vt = (5/30) × (Tsensed - 60) + 4.16 V

Plugging this into the output power equation and simplifying it, Q = Kp (Vset - [(5/30) × (Tsensed - 60) + 4.16 V])

Q = Kp (Vset - (5/30) × (Tsensed - 60) - 4.16 V)Q

= 2 kW/V DC × (5 V DC - (5/30) × (Tsensed - 60°C) - 4.16 V)Q

= 1/3 kW/°C × (75°C - Tsensed) + 5 kW

To know more about power equation, refer

https://brainly.com/question/31672647

#SPJ11

Answer:

[tex]3200\; {\rm J}[/tex].

Explanation:

The power [tex]P[/tex] (rate at which energy is consumed) of an electric circuit is equal to the product of voltage [tex]V[/tex] and current [tex]I[/tex]:

[tex]P = V\, I[/tex].

By Ohm's Law, the current in a resistor is proportional to the voltage in that resistor:

[tex]V = I\, R[/tex],

Where [tex]R[/tex] is the resistance of the resistor.

Substitute the expression for [tex]V[/tex] into the equation for power:

[tex]P = (I\, R)\, I = I^{2}\, R[/tex].

In other words, if resistance stays the same, the rate [tex]P[/tex] at which energy is consumed would be proportional to the square of current.

Hence, when current in this resistor is quadrupled, power consumed would increase to [tex]4^{2} = 16[/tex] times the initial value assuming that resistance stays the same. In the same amount of time, the resistor would now consume:

[tex]16\times 200\; {\rm J} = 3200\; {\rm J}[/tex].

i) According to the equations, the magnetic field's curl and the electric field's time rate of change are equal to the negative time rate of change of the magnetic field and the time rate of change of the electric field, respectively.

ii) The terms pertaining to charges and currents can be omitted when applying Maxwell's equations to fields in good conductors because they are insignificant.

Maxwell's equations are electromagnetic equations that relate the electric and magnetic fields. They are crucial in understanding many aspects of electromagnetic phenomena, including light, radio waves, and electric circuits. The equations have different forms for different types of materials.

Let us see how the equations can be rewritten for free space. Also, we will look at what terms can be ignored when applying the equations to good conductors.

i) The Maxwell's equations for fields in free space are as follows:

∇ x E = -dB/dt,  ∇ x H = dD/dt,  ∇ . D = 0, and  ∇ . B = 0.

Here, D is the electric flux density, B is the magnetic flux density,

E is the electric field intensity, and H is the magnetic field intensity.

The equations are applicable to fields in free space because there are no charges and currents present. As a result, the electric and magnetic fields obey differential equations that do not depend on charge or current densities.

The equations state that the curl of the electric field is equal to the negative time rate of change of the magnetic field, and the curl of the magnetic field is equal to the time rate of change of the electric field.

ii) When applying these equations to fields in good conductors, the terms that can be ignored are those that relate to charges and currents. For example, the term J in the second equation (i.e., ∇ x H = dD/dt + J) can be ignored because good conductors have very high conductivity, so they have no charge accumulation and no current flows inside them. Therefore, the equation becomes ∇ x H = dD/dt.

In summary, when applying Maxwell's equations to fields in good conductors, the terms that relate to charges and currents can be ignored because they are negligible.

know more about Maxwell's equations here

https://brainly.com/question/33309675#

#SPJ11

To find the mass of a single bird, we will use the torsional constant formula: The mass of a single bird is approximately 8.2 grams. The torsional constant formula is  τ = κθ = Iαω, where:τ is torque, κ is the torsional constant,

θ is the angle of twist,

I is the moment of inertia,

α is the angular acceleration, and

ω is the angular velocity.

The formula can be written as:

κ = I (2π/T)^2.

Let's solve for the mass of the bird using the given formula:

κ = torsional constant = 5.4 N·m/rad

ω = angular velocity = 2π × f = 2 × 3.14 × 2.3 Hz = 14.44 rad/s

Diameter of feeder, d = 47 cm = 0.47 m

Mass of feeder, m = 388 g = 0.388 kg

The moment of inertia of the feeder is given by:

I = (1/2)mr²,

where r is the radius of the feeder.

r = d/2 = 0.47/2 = 0.235 m

I = (1/2)(0.388 kg)(0.235 m)²

I = 0.004 kg·m²

The mass of the bird can be calculated as:

Mass of bird = (κ/ω²I) - m

Mass of bird = ((5.4 N·m/rad)/(14.44 rad/s)²(0.004 kg·m²)) - 0.388 kg

Mass of bird = 0.0082 kg = 8.2 g

To know more about torsional visit:

https://brainly.com/question/31838400

#SPJ11

(1) For the given circuit shown below, the matrix state-variable equation is given as:[tex]X = [ V1, V2, iL ]'Q = [ Vi, iL ]'[/tex]where ' denotes transpose of matrix.Now, to get the state-variable equation, we have to apply KVL to the loops of the circuit. Applying KVL to the given circuit,

we get the following equations:Loop 1: Vi - V1 - L * diL/dt - R1 * iL = 0Loop 2: V1 - V2 - R2 * iL = 0Differentiating both the above equations with respect to time, we get:Loop 1: dVi/dt - dV1/dt - L * d²iL/dt² - R1 * diL/dt = 0Loop 2: dV1/dt - dV2/dt - R2 * diL/dt = 0Now, using matrices, the above equations can be represented as:For loop 1: [ dV1/dt, diL/dt, dVi/dt ] = [ R1/L, -1/L, -1/L ] * [ V1, iL, Vi ]For loop

we have to first identify the state variables and write their first and second derivatives. The state variables are:iC, charge stored on the capacitorV2, voltage across the capacitorDifferentiating the above state variables with respect to time, we get:diC/dt = iL - C * dV2/dt... (1)dV2/dt = 1/C * iC... (2)Now, to write the matrix state equation, we can represent equation (1) and (2) in matrix form as:dX/dt = [ -1/RC, -1/R;1/C, 0 ] * X + [ 1, 0 ] * VwhereX = [ iC, V2 ]'V = [ V1 ]'Rearranging the above equation, we get:dX/dt = AX + BUwhere[tex]X = [ iC, V2 ]'U = [ V1 ]'Y = [ V2 ]'A = [ -1/RC, -1/R;1/C, 0 ]B = [ 1, 0 ]C = [ 0, 1 ]D = [ 0 ][/tex]Therefore, the matrix state equation for the given circuit is:dX/dt = [ -2, -1;-2, 0 ] * X + [ 1 ] * V1U = [ 0, 1 ] * X + [ 0 ]

To know more about circuit visit:

https://brainly.com/question/12608516

#SPJ11

The magnitude of the capacitive reactance (XC) at a frequency of 10 kHz, with a capacitance (C) of 10 nF, is approximately 159.155 ohms.

The magnitude of the capacitive reactance (XC) can be calculated using the formula:

XC = 1 / (2 × π × f × C)

where:

f is the frequency in hertz,

C is the capacitance in farads, and

π is a mathematical constant (approximately 3.14159).

Given that the frequency is 10 kHz (10,000 Hz) and the capacitance is 10 nF (10 × 10⁻⁹ F), we can substitute these values into the formula:

XC = 1 / (2 × π × 10,000 Hz × 10 × 10⁻⁹ F)

XC = 1 / (2 × 3.14159 × 10,000 Hz × 10 × 10⁻⁹ F)

XC = 1 / (62,831.853 Hz × 10 × 10⁻⁹ F)

XC = 1 / (6.28318 × 10⁻³ Ω)

XC = 159.155 Ω

Learn more about magnitude -

brainly.com/question/30337362

#SPJ11

A tennis racket is just like a baseball bat, which has a sweet spot at its center of percussion. When a tennis ball strikes this spot, the racket handle doesn't accelerate. This is because an impact at the center of percussion exerts no torque around the racket's center of mass and does not cause the racket to undergo angular acceleration.

Similar to a baseball bat, a tennis racket has a center of percussion, and when the ball hits that spot, the racket handles do not accelerate. A force or torque applied to an object tends to accelerate the object in the direction of the force or torque. When a tennis ball is hit off-center with a racket, a torque or force is applied to the racket, and it tends to rotate about its center of mass.

As a result, the racket's handle will accelerate.Since the force applied to the tennis ball when it strikes the center of percussion is in line with the racket's center of mass, there is no torque acting on the racket. The racket does not undergo angular acceleration, which is why the handle does not accelerate.

Hence, option A, an impact at the center of percussion exerts no torque about the racket's center of mass and doesn't cause the racket to undergo angular acceleration, is the correct answer.

To know more about accelerate visit :

https://brainly.com/question/2303856

#SPJ11

The element that is not one of ninety-nine percent of matter is made up of six elements is calcium (Option G).

The element calcium is not one of the six elements that make up 99% of matter. The six elements that makeup 99% of matter are carbon, hydrogen, nitrogen, oxygen, sulfur, and phosphorus. Calcium is a chemical element with the symbol Ca and atomic number 20. It is an alkaline earth metal that is a reactive pale yellow metal. Calcium is the fifth most abundant element by mass in the Earth's crust and the third most abundant (after oxygen and silicon) in the human body.

Thus, the correct option is G.

Learn more about elements: https://brainly.com/question/28450262

#SPJ11

In the modern world, communication systems are playing a vital role in connecting people, organizations, and nations worldwide. In a communication system, the information transfer occurs either in an analog or digital form. Both forms have their advantages and disadvantages over each other. This article will explain why digital systems have higher noise immunity than analog ones.

The digital system has higher noise immunity than analog ones because digital signals have two states 1 and 0, which makes them less vulnerable to noise, interference, or distortion. The noise refers to any undesired or unwanted signals that mix with the original signals and make it difficult to identify or detect the information. The analog system signals are continuous and can take any value within a range, and their amplification or attenuation is directly proportional to their amplitude, which makes them highly sensitive to noise or distortion.

In the digital system, the identification of the symbol is more easily using threshold detection. The threshold detection is a process of comparing the received signals with a fixed threshold value. If the received signal amplitude is higher than the threshold value, it will be considered as 1, and if it is lower than the threshold value, it will be considered as 0. This makes the identification process more accurate and efficient, and the signal will be less susceptible to noise, distortion, or interference.

To know more about communication visit:

https://brainly.com/question/29811467

#SPJ11

Given data;Charge of ql = -15.0 nC,Charge of q2 = +20.0 nCCharge of q3 = 5.0 nCDistance of ql from q3 = 2.0 mDistance of q2 from q3 = 6.0 m Distance of q3 from the axis = 0Net force experienced by q3 is calculated using Coulomb's law and vector addition principles.

Coulomb's law for electric force F on q3 between ql and

[tex]q3F1on3 = (1/4πε₀) (qlq3/r13²)[/tex]

where, r13 = 2 m (distance of ql from q3)

ε₀ is a constant having the value [tex]8.854 x 10^-12 C²/Nm²[/tex]

Putting the values, we get;

F1on3 = ([tex]1/4πε₀) (qlq3/r13²)[/tex]

=[tex](1/4πε₀) (-15.0 × 10^-9 C × 5.0 × 10^-9 C / 2.0²)[/tex]

= - 100.6 N

(force experienced by q3 due to ql)Coulomb's law for electric force F on q3 between q2 and q3F2on3 = [tex](1/4πε₀) (q2q3/r23²)[/tex]

where, r23 = 6 m (distance of q2 from q3)ε₀ is a constant having the value [tex]8.854 x 10^-12 C²/Nm²[/tex]

Putting the values, we get;

[tex]F2on3 = (1/4πε₀) (q2q3/r23²)[/tex]

=[tex](1/4πε₀) (+20.0 × 10^-9 C × 5.0 × 10^-9 C / 6.0²)[/tex]

= + 6.24 N (force experienced by q3 due to q2)The net force on q3 is;

F3 = F1on3 + F2on3

= - 100.6 N + 6.24 N

= - 94.36 N

The net force experienced by q3 is 94.36 N and it is directed towards ql.

To know more about Distance visit:

https://brainly.com/question/13034462

#SPJ11

we have ignored the air resistance, this is the exact velocity of the ice when it reaches the ground. Hence, the correct option is (b) 11.5 m/s.

Mass of the ice = 12.0 kg

Height of the fall, h = 5.32 m

The final velocity of the ice, v = ?

Let's use the formula for the velocity of an object falling under the influence of gravity,

v=√2gh

Here, g = acceleration due to gravity = 9.8 m/s²

We can substitute the given values in the above formula to find the velocity of the ice as:

v = √2 × 9.8 m/s² × 5.32 mv

 = √(2 × 9.8 m/s² × 5.32 m)≈ 11.5 m/s

Resistance refers to the opposition that a substance or a medium offers to the flow of an electrical current. Resistance is measured in Ohms (Ω).

In physics, resistance is a measure of how much current is opposed by an object, material, or circuit component. Resistance, like its reciprocal, conductance, is a scalar quantity.

To learn more on Resistance :

https://brainly.com/question/28135236

#SPJ11