two resistors are wired to a battery.(a) in which arrangement, parallel or series,are the potential differences across each resistor and across the equivalent resistance all equal? (b) in which arrangement are the currents through each resistor and through the equivalent resistance all equal?

We may use kinematic equations to explain and forecast the motion moving objects. However, we do not yet have a precise equation that links acceleration.

Speed is defined as the ratio of the completed distance to the time required to cover that distance. Since speed only includes a part and no magnitude, it is a proportionality constant.

By subtracting the distance traversed by the time needed to get there, speed is computed. To calculate the passing time, multiply the ranges by the speed. To calculate the distance, multiply the speed by both the time. These equations may be abbreviated as s=d/t.

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As a fish swims deeper into the ocean, the pressure on its body is:

b.increases

The pressure on the upper surface of the water is the lowest where there is not so much water as of little water pressure, along with a little atmospheric pressure, but if you go deep inside the water the pressure will increases. As on the lower surface of water, the pressure is highest due to heavy water pressure from upwards along with atmospheric pressure. So if a fish swims deeper into an ocean the water will exert more pressure than it is on the upper, to the body of the fish, so the pressure increases.

The presence of a supermassive black hole can be deduced from observations of the high speeds of orbiting stars & gas, as evidenced by broad emission lines. The central mass can be estimated from Kepler's 3rd law.

Astronomers can observe clusters of stars and gas moving around the center of the galaxy and use these movements to infer the mass of the central black hole. We measure the motion of stars, vortices of gas around them, and now, thanks to the Event Horizon Telescope Imaging Project the diameter of black holes.

Astronomers at the Max Planck Institute for Astronomy have successfully tested a new method for determining the mass of extreme black holes in quasars for the first time. This method is called spectrometry and is based on measurements of radiation emitted from gas near supermassive black holes. By tracking the movement of gas and dust near the black hole that is attracted to the black hole's mass, we can measure the mass of the black hole.

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If we look back to the first generation of stars made when the Galaxy was first forming, they differ from stars being formed today because the first generation stars contain little or no elements heavier than helium.

Third generation: A star formed from material that has previously been enriched in heavy elements and contains elements that are created through the s-process inside of second-generation (or third-generation) stars that came before it.

We could have stars that have undergone dozens or even 100 generations in a Universe that is 13.8 billion years old if the process is effective enough, even though the majority of the material that is currently in existence has probably only participated in a few generations — somewhere between 3 and 6 is probably a good guess.

When the first stars in the universe, which were primarily made of the elements helium and hydrogen, exploded as supernovae, second-generation stars were created. These explosions resulted in the first-generation stars producing new elements.

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Acc. to the given statement: The minimum radius of the circular path is 2335m.

Any line segment connecting a circle's or sphere's center to its perimeter is considered the object's radius.

Acceleration: the rate at which the speed and direction of a moving object vary over time. A point or object going straight ahead is accelerated when it speeds up or decelerates.

The force that pulls items toward the center of a planet or other entity is called gravity. The force experienced by objects towards earth is called Gravity.

To calculate the minimum radius of the circular path we use the formula for max acceleration given below.

amax=v2/rmin

Solving and rearranging the formula for minimum radius, we get the following:

rmin =v2/ amax

now putting values acc to the given data:

rmin=51.42/11.1×9.81

rmin =2335 m

So, The minimum radius of the circular path is 2335m.

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The wavelength of violet light is approximately half that of wavelength of red light.

Light energy is a form of kinetic energy that has the ability to make some kind of light visible to the human eye. Light is defined as a form of electromagnetic radiation emitted by hot objects such as lasers, incandescent bulbs, and the sun.

Light contains photons, which are tiny packets of energy. When the atoms of an object heat up, they produce photons.

Mathemaically, E = hv

where, E ----> energy of a light wave .

h ---> Planck's constant.

v---> frequency.

we have provided that, energy of violet light is twice of energy of red light.

E₁ = 2E₂ where, E₁----> energy of violet light

E₂----> energy of red light

from above formula, hν₁= 2 hν₂=> ν₁= 2ν₂

Using the relation, v = c/λ

for violet light ,ν₁ = c/λ₁ and ν₂= c/λ₂

λ₁ --> wavalenght of violet light

λ₂--> wavelength of red light

c/λ₁= 2 c/λ₂

=> λ₁= 1/2 λ₂

Hence, wavelength of violet light is half of wavelength of red light.

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The two components of the equation for the free energy stored in the proton gradient are called as concentration gradient and Voltage difference ( Electric potential )

The equation for the free energy stored in the proton gradient is

ΔG = 2.3 RTΔpH + FΔψ

ΔpH = H+ concentration gradient

Δψ = Voltage difference / Electric potential

The significance of concentration gradient and Voltage difference ( Electric potential ) being a separate entity in the equation is to provide energy and independent contribution to ATP synthesis.

Therefore, the two components of the equation for the free energy stored in the proton gradient are called as concentration gradient and Voltage difference ( Electric potential )

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The current flowing through the light bulb is 9.6 Amperes.

According to the Ohm's Law, the potential difference or voltage across a conductor is directly proportional to the current to the current flowing in the conductor, so,

V ∝ I

V is voltage, I is current,

V = IR

Here, the voltage of the battery is 24V.

The resistance of the light bulb is 2.5 Ohms,

Now, putting values,

24 = 2.5I

I = 9.6 A.

So, the current flowing through the light bulb is 9.6A.

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The final velocity of the red barge in the collision elastic is 0.311 m/s when it collides with blue barge pf mass 1000000 kg.

Final velocity(v3)  of the red barge is calculated by following formula

m1×v1+ m2×v2= (m1+m2)v3

Substituting the value of m1= 150000 kg, v1= 0.25 m/s, m2= 1000000 kg, v2= 0.32 m/s

150000 × 0.25+ 1000000×0.32= (150000+1000000)×v3

37500+ 320000= 1150000×v3

357500= 1150000×v3

v3= 0.311 m/s

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Answer:

Absolute Speed Va = 5.0 km/h  (North)

Explanation:

Velocity addition rule:

"In classical mechanics, the absolute velocity of a point is equal to the vector sum of its relative and translational velocities".

[tex]\Vec{V_a}= \Vec{V_r}+\Vec{Ve}\\[/tex]

Given:

Vr = 10.0 km/h - relative speed  (North)

Ve = 5.0 km/h  - carrying speed (South)

___________________

Va - ?  -  Absolute Speed  

Va = Vr (North) - Ve (South);

Va = 10.0 - 5.0 = 5.0 km/h  (North)

The engine's torque is transferred to the wheel's periphery and acts as a force pushing the road back (via friction between the tire and the road surface).

To gain mechanical advantage, a tangential force applied to the big disk's periphery can apply a stronger force on a load coupled to the axle.

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The loss of voltage brought on by the passage of current through a resistance is known as voltage drop.

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The increase in temperature of the 1.4 kg sample of water that results form the conersion of 19% of the gravitational potential energy directly to heat is  0.36°C.

Increase in temperature is the positive difference between the final and the intial temperatures of a body.

To calculate the increase in temperature (ΔT), We use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the increase in temperature of the the water is 0.36°C.

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Answer:

Explanation:

Given:

M = 20.0 kg

V₀ = 0 m/s

V = 16.0 m/s

___________

A - ?

A = M·V² / 2

A = 20.0·(16.0)² / 2 = 2 560 J

Answer: B 2560j

Explanation:

i got it right on edge 2022

In consideration of Henry's law the molar mass of organic compound is 0.24 grams.

What is molar mass?

The molar mass of a chemical compound defined as the mass of a sample of that compound devided by the amount of substance which is the number of moles in that sample,measured in moles.

Sol-One of three asks what the mass of water is in grams and two and 1/2 liters of paper of Equis, 12.5% sodium chloride, 55 degrees Celsius. His problem tells us that pure water is 118 tour at 55 degrees Celsius. So the first thing that we have to do here is figure out wth e um, the mole fraction of thermal fractions, I suppose, of both sodium chloride and water.

We're dividing by molecular way to be trippy substances, uh, studying chloride being 58.44 grams per mole and water being 18.2 grand's for mole. That gets a 0.214 molds of sodium chloride and 4.86 months off water. So it can take both of these, uh, numbers of moles then and plug them into the, um, the pressure equation given and chapter 13 here. So the pressure of the solution is equal to the mole fraction of the solvent, which is here, water multiplied by the pressure of pure sullivan given to us in the problem.

We know those 2.5 liters. We're looking for this number of moles here. Ideal gas constant 0.8 to 6 leader atmospheres over mole Calvin. And then we have to convert, um, Celsius, the 55 degrees Celsius to Calvin. So remember that simply 55 degrees Celsius plus two year and 73 which gets US 328 Calvin. So solving all of that for the number of moles, then that gives us 0.133 off water and 2.5 liters of vapor. So last step, then, is to just convert that to Graham's, since the problem asks for a mass and not number moles. So you can plug that, um, basically into, uh, the molecular weight of water, just 18.2 grand's for mold. And that gives us keeping significant figures in mind. 0.24 grams.

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Binary stars certainly have habitable zones where liquid water may exist on the planet's surface but it may be difficult for life to gain a foothold. Colder than 16 degrees Fahrenheit minus 100 degrees on Earth.

Orbital binaries are planets orbiting two stars instead of one star. Two stars orbit each other in a binary star system, but planets usually orbit farther from the center of the system than either star but can be in stable orbits around one of the stars in the binary system. A planet is known.

No planet in a binary system is likely to have the stable orbits necessary for the evolution of life. Earth is probably very rare in that it has a stable orbit at just the right distance from a benign star and maintains that orbit for the required 4.5 billion years. We say that planets orbit stars, but that's not entirely true. Planets and stars actually orbit around a common center of gravity. This common center of gravity is called the centroid.

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Additionally, the ultraviolet, X-ray, and even gamma-ray portions of the spectrum are all produced by our Sun.

During solar flares, the Sun can release electromagnetic radiation from radio to gamma rays, which is probably related to the collision of flare-accelerated particles in the solar atmosphere.

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The moment of inertia changes by a factor of 0.42. Moment of inertia is defined as the quantity represented by a body that resists angular acceleration.

Moment of inertia, a quantitative measure of the rotational inertia of a body in physics - i. H. The resistance that a body exhibits to changing its rotational speed about its axis by the application of a torque (torque). Axes can be internal or external and can be fixed or unfixed. The law of conservation of inertia is given by the following equation.

Iω = I'ω'

where I is the initial inertia, ω is the initial angular velocity, I' is the final inertia, and ω' is the final angular velocity.

ω = 2.5 rev/s, ω' = 6 rev/s, i.e.:

Iω = I'ω'

I(2.5) = I'(6)

I' = 0.42I

moment of inertia increased by 0.42 change.

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The time constant of the circuit is 2.10 s.

Given data :

product of the circuit resistance = 2.81 msms

circuit capacitance = 0.75

By applying the equation T = R*C in seconds is used to get the time constant.

T = R x C =

= 2.81 x 0.75 = 2.10 s

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The amount of water vapor that must condense out if the air is cooled to 15 degrees celsius from 30 degree celsius is 10 g / kg

At 30°C,

1 kg of air parcel = 20 g vapour

At 15°C,

1 kg of air parcel = 10 g vapour

Change in weight of vapour = 20 - 10 = 10 g / kg

The maximum amount of water vapour that the air can hold at a given temperature is known as saturation point. It is also called as 100% relative humidity. An air parcel is a bubble of air of no definite size that is assumed to retain its shape and general characteristics as it rises or sinks in the atmosphere.

Therefore, the amount of water vapor that must condense out if the air is cooled to 15 degrees celsius is 10 g / kg

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Using the concepts of work, we got that kinetic energy of plastic cart is same as kinetic energy of the lead cart after travelling 1mm.

We know very well that

work done on the object=Force × displacement=change in kinetic energy

When both of plastic cart and lead cart moves 1mm displacement, in that case force exerted by the ground to stop the body is same.

Therefore, work done on the object is same for both and change in kinetic energy is same for both of the carts.

Hence, after traveling 1 mm , the kinetic energy of the plastic cart is same as the kinetic energy of the lead cart.

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The mechanical advantage Moves the fulcrum closer to the clay block. Option B.

You can increase the mechanical advantage of the lever by increasing the power arm or decreasing the load arm. The mechanical advantage of the lever can be increased by increasing the power arm or decreasing the load arm. To increase the mechanical advantage, we need to increase the force arm and decrease the load arm.

Decreasing incline increases mechanical advantage. However, the load has to travel long distances. The ideal mechanical advantage of an incline is the length of the incline divided by the vertical incline which is called the run-to-elevation ratio. Moving the fulcrum closer to the load increases the mechanical advantage. -Moving power away from the pivot increases mechanical advantage.

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Answer: It's B, Move the fulcrum closer to the clay block.

Explanation: I took the test.

An inclined plane makes an angle of 35 degrees with the horizontal and has a pulley at its top. a 30kg block on the plane is connected to a freely hanging 20. 0 kg block by means of a cord passing over the pulley. The distance the 20. 0 kg block will fall in 2. 0s starting from rest will be s = 19.6 m

for block 1

F net = 0

Tension - gravitational force = mass * acceleration

T - m1 * g *sin (35) = m1a

  = m1a + m1 * g *sin (35)

  = m1 ( a + g sin (35) )

  = 30 ( a + 5.6 )

  = 30 ( a + 5.6 )  

T =  30 ( a + 5.6 )                  equation 1

for block 2

m2 g - T = m2 a

T = m2 g - m2 a

  = m2 ( g - a)

  = 20 ( 9.8 - a )

T = 20 ( 9.8 - a )                         equation 2

equating equation 1 and equation 2

30 ( a + 5.6 )  = 20 ( 9.8 - a )    

30 a + 168 = 196 - 20 a

50 a = 28

a = 0.56 [tex]m/s^{2}[/tex]

- s = ut - 1/2 * g * [tex]t^{2}[/tex]

-s = 0 - 1/2 * 9.8 * [tex]2^{2}[/tex]

s = 19.6 m

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Average velocity of the object will be 45.25m/s. Option(a) is correct.

The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.

Given parameters:

The position of the object at time t = 2s w.r.t. reference point is: x₁ = 19 m.

The position of the object at time t = 6s  w.r.t. reference point is: x₂ = 200 m.

Hence, time difference = 6 s -2s = 4s.

Displacement: d = x₂ - x₁ = 200 m - 19 m = 181 m.

Hence, average velocity: v = Displacement/time difference = 181 m / 4s = 45.25 m/s.

So, its average velocity will be 45.25m/s. Option(a) is correct.

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The acceleration of a 2000 kg truck that has an engine exerts 400 N of force at 0.2 m/s².

Acceleration is the rate of change of the velocity of an item with appreciation to time. Accelerations are vector portions. The orientation of an item's acceleration is given by the orientation of the net pressure appearing on that object.

Calculation:-

mass = 2000 kg

Force = 400 N

acceleration = F/mass

                      =  400/2000

                      = 0.2 m/s²

Acceleration is the charge at which velocity modifications with time, in terms of each speed and route. A factor or an object moving in a straight line is accelerated if it quickens or slows down. movement on a circle is extended despite the fact that the rate is consistent because the course is continually changing.

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Different stages of life require different nutritional needs. Teenagers grow physically so they need more calories and nutrients. Therefore, option (B) is correct.

Nutritional needs changes will continue throughout all life stages with the requirements for protein, calories, vitamins, and minerals adjusting as we grow older.

The physical needs of the human body change over time, and dietary needs at various life stages will change as a result of psychological, economic, and social aspects. The change in nutritional requirements for each life stage such as infants, children, teens, adults, and the elderly.

Due to the growth period, teenagers need a balanced diet packed full of nutrients including calcium, iron, and protein which will ensure they are getting these essential nutrients. Vegetables are good for older people as they reduce health risks.

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The User Account Control dialog box comes when you access one of your data files. You cannot change the desktop resolution setting because it is fixed.

There is no distinction between a user account and a user profile. Windows 10 Settings has taken the role of Windows Control Panel. The CPU processes instructions through a process known as "fetch-execute." The first instruction in the sequence is retrieved, executed (by, for instance, adding two numbers), and then the next instruction is retrieved, executed, and so on. System modal, modal, and modeless dialog windows are the three distinct varieties. Modal dialog windows are frequently used by programs to display messages and set up software. All open windows will be simultaneously minimized when you click the Show Desktop button.

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Output power of the solar panel is 170.6 W.

Solar panels are those tools that take the sun's rays and turn them into heat or power.

An array of solar (or photovoltaic) cells make up a solar panel, which can be used to produce power thanks to the photovoltaic effect. On the surface of solar panels, these cells are organized in a grid-like configuration.

Given parameters:

Area of the solar panel: A = 1.25 m²

Efficiency of the solar panel; η = 21.0%

The insolation of it = 650 W/m².

Hence, input power of the solar panel: I =  insolation × area

= 650 × 1.25 W

= 812.5 W.

Output power of the solar panel: O = efficiency × input power

= 21.0% ×821.5 W

= 170.6 W.

Hence, its output power is 170.6 W.

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Collisions are the act when two bodies come in direct physical contact with each other and there is some destruction caused.

Collisions are seen almost everywhere be it in space or on Earth.

Sometimes the collision happens to be destructive and sometimes the momentum is increased.

But when a vehicle collides with each other and a galaxy collides with other galaxy, this tends to bring disasters.

Collision depends on the mass of the body and the velocity at which the body is moving.

Since the mass can't be changed, what we can alter is the velocity.

Therefore, if we decrease the velocity and reduce acceleration then the collisions can be prevented.

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