The kinetic and potential energy of a harmonic oscillator in motion:_________
a. are time-independent
b. are perfectly correlated
c. are independent
d. are perfectly anticorrelated

Answers

Answer 1

The kinetic and potential energy of a harmonic oscillator in motion

d) are perfectly anti-correlated.

Explanation:

A restoring force in a harmonic oscillator works in the direction of an equilibrium point.

Simple harmonic motion, which we refer to as repetitive motion, is produced by the force.

The system's mechanical energy, which includes both potential and kinetic energy, is ideally constant.

In actuality, the energy is preserved by allowing one quantity to grow as the other shrinks, and vice versa.

An anti-correlation is a term that describes a negative correlation.

Kinetic energy and potential energy are two types of energy that are frequently found in mechanical systems and are referred to as mechanical energy in physics.

The idea of mechanical energy conservation is based on an even more general principle known as the law of conservation of energy; the only distinction is that in mechanical energy conservation, all of the system's energy is either in the form of kinetic energy, potential energy, or both.

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Related Questions


A particle is executing accelerated motion. The acceleration is constant in magnitude but
not in direction. Predict the path followed by the particle. How will you find the speed of the
(2)
particle?

Answers

When the magnitude remains came and the direction changes the particle is moving in a circular motion. Speed is equal to the arc length traveled (S) divided by the change in time (Δ),

A particle travels in a uniform circular motion while maintaining a constant speed. The radius R of the circle sweeps out the angle, and the particle's velocity vector v in the illustration has a constant magnitude but changes direction as it advances from location B to position C.

The isosceles triangles OBC and DEF are identical because OB and OC are perpendicular to the velocity vectors, and as a result, the ratio of the chord BC to the radius R is the same as the ratio of the magnitudes of v to v. The chord BC and the arc BC approach one another as approaches zero, and the chord can be replaced by the arc in the ratio.

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What would be the frequency of a 0.5 kg mass oscillating on a spring with spring constant k = 5 n/m?

Answers

The frequency of 0.5 kg mass oscillating on a spring with spring constant k = 5 n/m will be 0.50 Hz.

The oscillation of a spring is governed by the following formulas :

ω =  √k/√m

T = 2π/ω = 2π (√m√/k)

f = 1/T = 1/2π(√k/√m)

Here ω represents the angular frequency

T is the time period

And f is the frequency

We can use the third formula to calculate the frequency by putting the given values in it.

f = 1/2π  √k/√m

f = 1/2π √5/√0.5

f = 1/2π x √10

f = 1/2 x 3.16/3.14

f = 0.50 Hz

Hence, the frequency of 0.5 kg mass oscillating on a spring with spring constant k = 5 n/m will be 0.50 Hz.

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What was larry's acceleration at take-off? assume a take-off mass of 210 lb (including helium)

Answers

Larry's acceleration at take-off is  23.38 m/s.

Acceleration is the name we give to any process where the velocity changes. Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your directionor change both.

Formula for acceleration ->

a= Δu / Δt = [tex]u_{f} - u_{i}[/tex] / Δt

Now, Given

m = 200Lb = 90.71kg

D = 2m / s

[tex]N_{0}[/tex] = 42

volume of balloon = (4/3)π[tex]r^{3}[/tex]

= 4/3 * pi * (1) ^ 3 = 4 . 188 m  t ^ 3

Total volume 42 x 4-188 = 175.9 mt3

Buoyancy force = P g x volume of air displaced

= 1.229 * 9.81 * 175 * 9

= 2121N

Force =  mass x acceleration

acceleration = F /m = 2121 / 96.71 = 23.38 m/s

Therefore, the required acceleration is 23.38 m/s.

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An object moves at a constant velocity, v, for some distance, x. How long has it been in motion?

A. x/v
B. v/x
C. x∗v
D. v/2x
E. None of the above

Answers

Answer:

V = m / s           correct units for V

x = V * t = m / s * s = m    where x is in meters

Thus t = x / V = m / (m / s) = sec

A) has to be the correct equation

A car is traveling at vx= 20 m/s . the driver apples brakes and the car slows down at ax=-4.0 m/s^2 what is the stopping distance?

Answers

The stopping distance for a car traveling at a velocity of 20 m/s and acceleration of -4 m/s^2 is 50 m.

The above situation is a case of motion in one dimension, which is governed by the following equations,

V = u + at ..........(i)

V^2 - u^2 = 2as ..........(ii)

S = ut + 1/2 at^2 .........(iii)

As we are given the initial velocity, the final velocity, and the acceleration, therefore we have to apply the second equation to get the answer

v^2 - u^2 = 2as

Here v is the final velocity = 0 m/s

u is the initial velocity = 20 m/s

a is the acceleration = -4 m/s^2

And s is the distance traveled by car

Putting the given values in the above equation,

(0) ^2 - (20)^2 = 2(-4)s

-400 = -8s

S = 50 m

Hence, The stopping distance for a car traveling at a velocity of 20 m/s and acceleration of -4 m/s^2 is 50 m.

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in a slap shot, a hockey player accelerates the puck from a velocity of 11 m/s to 50 m/s in the same direction. if this takes 3.33x10^-2 s, calculate the distance over which the puck accelerates

Answers

The distance traveled by the puck is 0.203 m.

What is distance?

This can be defined as the length between two points.

To calculate the distance which the puck accelerate, we use the formula below.

Formula:

S = (v+u)t/2.......... Equation 1

Where:

S = Distancev = Final velocityu = Initial velocityt = Time

From the question,

Given:

v = 50 m/su = 11 m/st = 3.33×10⁻³ s

Substitute these values into equation 1

S = (50+11)3.33×10⁻³ /2S = 0.203 m

Hence, the distance traveled by the puck is 0.203 m.

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A diode hasiso=10 fa and a built-in voltage of 0.8 v. what isisfor a reverse biasof 10 v?

Answers

A diode that has the iso=10 fa and a built-in voltage of 0.8 v, its reverse basis for 10v is 36.7fA

What does a diode do?

As rectifiers, signal limiters, voltage regulators, switches, signal modulators, signal mixers, signal demodulators, and oscillators, diodes are a versatile electrical component.

A diode’s propensity to transmit electric current solely in one direction is its fundamental characteristic.

What are diodes and their types?

An electrical device with two terminals is a diode. A semiconductor, most frequently silicon but occasionally germanium, is used to create diodes.

There are many different kinds of diodes, but the ones being addressed here include the silicon-controlled rectifier, TRIAC, transient voltage suppressor, Zener, rectifier, and Schottky diodes.

What is the diode’s operating principle?

A diode’s most frequent use is to permit an electric current to flow in one direction while blocking it in another. This is known as the diode’s forward direction.

It is provided that

Vr = 10V

ϕj = 0.8 V

Iso = 10fA

The reverse current Is

Is = Iso sqrt [1 + Vr/ϕj]  → 1

Substituting all the values provided in question to equation 1, we have

Is = 10fA sqrt (1+10/0.8)

=(10fA) sqrt (13.5)

= 36.7fA

Thus Is = 36.7fA

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During a baseball game, a batter hits a high
pop-up.
If the ball remains in the air for 5.86 s, how
high above the point where it hits the bat
does it rise? Assume when it hits the ground
it hits at exactly the level of the bat. The
acceleration of gravity is 9.8 m/s².
Answer in units of m

Answers

Answer:

Доброе утро, ответ 5+5="4

Explanation:

A 12-n force is applied at the point x=3m, y=1m. find the torque about the origin if the force points in (a) the x direction, (b) the y direction, and (c) the z direction.

Answers

The torque about the origin if the force points in (a) the x direction, (b) the y direction, and (c) the z direction are 12; 36; 37.9 respectively

Torque is a twisting force produced by applying a force at a distance from a point. We would need to choose a distance that is perpendicular to the force's direction. We apply the equation to determine torque,

T=Fd

where F is the force and d is the orthogonal distance to a central point.

i. If the force points in the x-direction, we need to use the y-distance to calculate torque.

T=Fxdy

T=12N *1m

T = 12 N.m

ii. If the force points in the y-direction, we need to use the x-distance to calculate torque.

T=Fxdy

T= 12N * 3m

T = 36 N.m

iii. If the force is directed in the z-direction, the straight-line distance from the origin to the point is orthogonal to the force. The magnitude of the distance will be used as the distance value. This may be determined using the equation.

||d||= √ (X2 + Y2)

where X and Y are the x and y coordinates.

T=Fz||d||

T=(12N) (√ (32 + 12)

T = 37.9 N.m

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PLEASE HELP ME WITH THIS!!
starting from one shore you row a boat across a narrow river to the other shore. the river is 30.0 m wide as u row the river current moves your boat down the river a distance of 15.0 m what is the resultant displacement of your boat? express your answer in components, and then determine the magnitude

Answers

The magnitude of the resultant displacement of your boat will be 33.5 m

What is Displacement ?

Displacement is the distance travelled in a specific direction. It is a vector quantity and it is measured in meter.

If starting from one shore you row a boat across a narrow river to the other shore. the river is 30.0 m wide as u row the river current moves your boat down the river a distance of 15.0 m

The resultant displacement of your boat can be calculated by using Pythagoras theorem.

The horizontal component = 15 m, while the vertical component = 30 m

The magnitude of the resultant displacement D = √(x² + y²)

D = √(15² + 30²)

D = √(225 + 900)

D = √1125

D = 33.5 m

Therefore, the magnitude of the resultant displacement of your boat will be 33.5 m

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An aqueous solution with a ph of 2.00 is diluted from 1.0 l to 3.0 l. what is the ph of the diluted solution?

Answers

The aqueous solution with a ph of 2.00 is diluted from 1.0 l to 3.0 l.The ph of the diluted solution will be 2.48.

The pH serves as a gauge for a solution's acidity or alkalinity, as well as its hydrogen ion concentration. The pH scale typically ranges from 0 to 14. Acidic aqueous solutions at 25 °C are those with a pH below 7, and basic or alkaline solutions are those with a pH above 7.

Anything that is acidic is below 7.0, while everything that is alkaline or basic is above 7.0. A pH scale that lists the pH values of common substances and ranges from 0 (extremely basic/alkaline) to 14 (very basic/alkaline).

A solution's pH is a significant indicator of its chemical composition. The pH can affect how readily available nutrients are, how biological processes work, how bacteria behave, and how chemicals behave.

Aqueous solutions are made up of water and one or more dissolved materials. Solids, gases, or other liquids can all dissolve in an aqueous solution.

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The combination of coke and steam produces a mixture called coal gas, which can be used as a fuel or as a starting material for other reactions. the equation for the production of coal gas is:_______

Answers

Coal gas is produced by using the following equation: 2C (s) + 2 H,O (g) CH, (g) + CO.

What is coal gas?

Coal gas is a mixture of methane and carbon dioxide that is created when coke and steam are combined. Gas from coal can be burned as fuel or employed as a catalyst in other chemical reactions.

How are coal tar, coal gas, and coke produced?

When heating coal without the presence of air. It generates gas known as coal gas. It creates a substance known as coal tar. Additionally, coke, a solid residue, is created.

Coal gas is a fuel composed of hydrogen, oxygen, and carbon.

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your friend throws a rock off a cliff straight down with an initial speed of 10.0 m/s using a stopwatch you determine it takes the rock 3.2 s to hit the ground below. how high is the cliff

Answers

It it takes the rock a time of 3.2 s with an initial velocity of 10 m / s, the height of the cliff is 82.12 m

s = ut + 1 / 2 at²

s = Height

u = Initial velocity

a = Acceleration due to gravity

t = Time

u = 10 m / s

t = 3.2 s

a = g = 9.8 m / s²

s = ( 10 * 3.2 ) + ( 1 / 2 * 9.8 * 3.2² )

s = 32 + 50.18

s = 82.18 m

The equation used to find the solution is an equation of motion. Equations of motion are discovered to describe the position of an object in motion at any given time.

Therefore, the height of the cliff is 82.12 m

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At what temperature (degrees fahrenheit) is the fahrenheit scale reading equal to (a) 3 times that of the celsius and (b) 1/6 times that of the celsius?

Answers

45.7 °F  is the Fahrenheit scale reading equal to  3 times that of the Celsius

-4 °F is 1/6 times that of the Celsius

Evaluating :

The relationship between temperature in degrees Fahrenheit, F, and degrees Celsius, C, is

F = 1.8°C + 32

Part a.

If F = 6°C, then

6°C = 1.8°C + 32

6°C - 1.8°C = 32

4.2°C = 32

C = 7.62

Therefore, F = 6×7.62 = 45.71

= 45.7 °F (nearest tenth)

Part b.

When F = (1/5)C, then

0.2°C = 1.8°C + 32

0.2°C - 1.8°C = 32

-1.6°C = 32

C = - 20

Therefore, F = 0.2 × -20 = -4

                      =   -4 °F

What are Celsius and Fahrenheit scales?

Celsius and Fahrenheit are two scales won't to measure temperature. The temperature within the centigrade scale will be expressed in degrees Celsius. The temperature within the Fahrenheit scale will be expressed in degrees Fahrenheit. The relation between Celsius and Fahrenheit is proportional.

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What is the change in entropy when 2.00 kgof water at is heated to 100 degrees cel form steam at ?

Answers

The entropy change when 2.00 kg of water at 100°C is heated to form steam at 100°C is 12.1kJ/K.

Entropy is a metric for a system's unpredictability or disorder. The mass of a system affects the value of entropy. It has units of joules per kelvin and is represented by the letter S. The value of entropy can be either positive or negative.

Total energy change = latent heat of of vapourization × mass

Total energy change = [tex]2.26[/tex] × [tex]10^{6}[/tex] × 2

Total energy change = 4520kJ

Now, entropy change is given as:

Δ[tex]S = \frac{Total energy change}{Temperature}[/tex]

Δ[tex]S = \frac{4520}{273.15+100}[/tex]

Entropy = 12.1kJ/K

Therefore, the entropy change when 2.00 kg of water at 100°C is heated to form steam at 100°C is 12.1kJ/K.

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A 60.0-cm long string with a mass 8.00 g has a tension 200 n. what is the fundamental frequency of this string?

Answers

The fundamental frequency is 102.06 Hz m/s.

We need to know about the fundamental resonant frequency to solve this problem. When the string is vibrating at its lowest resonant frequency, it should follow the rule

λ = 2L

where λ is wavelength and L is the length of string

The transverse waves on a string also can be defined as

v = √(F . l/m)

where v is velocity, F is string tension, l is the length of string and m is mass

From the question above, we know that

l = 60 cm = 0.6 m

m = 8 g = 8 x 10¯³ kg

F = 200 N

By substituting the following equation, we can calculate the wavelength

λ = 2L

λ = 2 . 0.6

λ = 1.2 m

Find the speed of the wave

v = √(F . l/m)

v = √(200 . 0.6/(8 x 10¯³))

v = 122.47 m/s

Find the frequency

v = λ . f

122.47 = 1.2 . f

f = 102.06 Hz

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Sodium vapor lamps, used for public lighting, emit yellow light of a wavelength of 570 nm. How much energy is emitted by an excited sodium atom when it generates a photon?.

Answers

The electromagnetic energy emitted by an excited sodium atom is 3.47 x 10¯¹⁹ joules.

We need to know about electromagnetic energy to solve the problem. The electromagnetic energy of radiated photons can be calculated by wavelength. It can be determined as

E = h . c / λ

where E is energy, h is Max Planck's constant (6.6 x 10¯³⁴ Js), c is the speed of light (3 x 10⁸ m/s) and λ is the wavelength.

From the question above, the given parameter is

λ = 570 nm = 570 x 10¯⁹ m

By using the equation, we can calculate the energy generated from an sodium atom

E = h . c / λ

E = 6.6 x 10¯³⁴ . 3 x 10⁸ / 570 x 10¯⁹

E = 3.47 x 10¯¹⁹ joules

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A 9V battery supplies power to a cordless curling iron with a resistance of 18 ohm how much current is flowing through the curling iron

Answers

Answer:

V = IR

V = voltage = 9 volts

I = current

R = resistance = 18 ohms

V = IR

9 = I·18

The coal has 50 J of potential energy and no kinetic energy. It is burned in the power plant to produce electrical energy, but only 20 J of electrical energy is produced.
Which of the following may account for this?

Some of the coal's energy was destroyed by the fire.
Some of the coal's energy was turned into other forms.
The fire was used to create the electrical energy from scratch.

Answers

Some of the coal's energy was turned into other forms of energy.

What is conversion of energy?

According to the first law of thermodynamics, energy can neither be created nor destroyed but is converted from one form to another. We know that from the first law of thermodynamics, the energy that originally in the coal does not  vanish into thin air but undergoes a conversion.

Thus, want to find out what accounts for the energy of the coal. Thus, we could say that some of the coal's energy was turned into other forms as this is in consonance with the first la of thermodynamics.

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A tennis ball with a speed of 20.6 m/s is
moving perpendicular to a wall. After striking
the wall, the ball rebounds in the opposite
direction with a speed of 11.948 m/s.
If the ball is in contact with the wall for
0.0082 s, what is the average acceleration of
the ball while it is in contact with the wall?
Take "toward the wall" to be the positive
direction.
Answer in units of m/s².
hig
ate
6
wa
W
ve

Answers

The average acceleration of the ball, while it is in contact with the wall, is -3969.27 m/s².

Acceleration is the rate of change of velocity per unit of time. Its S.I. unit is m/s². It is equal to the change in velocity divided by the time taken to change the velocity.

Acceleration a =  Change in velocity/ Time taken

Given in the question

Initial Velocity = u = + 20.6 m/s ( towards the wall is positive direction )

Final Velocity = v = - 11.948 m/s (away from the wall is negative direction)

Change in Velocity = Final Velocity - Initial Velocity

                                = (- 11.948) - ( + 20.6)

                                = -11.948 - 20.6

                                = -32.548 m/s

So Change in velocity = 32.548 m/s

Time Taken = Time of contact with the wall

                    = 0.0082 seconds

Put in the Formula: a =  Change in velocity/ Time taken

a = -32.548/0.0082

a = -3969.27 m/s²

Therefore the average acceleration of the ball, while it is in contact with the wall, is -3969.27 m/s².

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A watercraft with an initial velocity of 6.4 m/s [e] undergoes an average acceleration of 2.0 m/s2 [s] for 2.5 s. what is the final velocity of the watercraft?

Answers

The watercraft with an initial velocity of 6.4 m/s and an average acceleration of 2.0 m/s2 [s] for 2.5 s will have a final velocity of: 11.4 m/s

The formula for Uniformly varied rectilinear motion (UVRM) and procedure we will use to solve this exercise is:

vf = vi + (a* t)

Where:

vf = final velocityvi = initial velocityt = timea = acceleration

Information about the problem:

vi= 6.4 m/sa= 2.0 m/s²t = 2.5 svf = ?

Applying the final velocity formula, we have:

vf = vi + (a* t)

vf = 6.4 m/s + (2.0 m/s²* 2.5 s)

vf = 6.4 m/s + 5 m/s

vf = 11.4 m/s

What is acceleration?

It is a physical quantity that indicates the variation of velocity as a function of time, it is expressed in units of distance per time squared e.g.: m/sec2 ; km/h2

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A __________ was used to probe and find the surfaces of electric potential
a) banana - banana cable
b) voltage sensor
c) digital multimeter
d) meter stick

Answers

A voltage sensor was used to probe and find the surfaces of electric potential.

How is the electric potential measured?

One of the most widely utilized electrical quantities is electrical potential, which is essential for both storing and releasing electrical energy.

By dividing the potential energy by the total charge, the electric potential of any charge is calculated.

To measure the electrical potential difference between two locations in an electric circuit, a voltmeter is employed.

The electric potential difference between two places is determined using a voltmeter.

The electrical component whose potential difference is being measured is connected in parallel to voltmeters, which have high resistance.

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A slice of cheese has a mass of 44 g and a volume of 33 cm3. what is the density of the cheese in units of g/cm3 and g/ml?

Answers

The density of cheese is 1.33 g/cm³ or 1.33 g/mL.

We need to know about the density to solve this problem. Density is a unit that measures how dense an object is. Density can be measured by dividing mass by volume. It can be written as

ρ = m / V

where ρ is density, m is mass and V is volume

From the question above, we know that

m = 44 g

V = 33 cm³

As we know that 1 cm³ is equal to 1 ml, hence the answer will be the same.

By substituting the following parameters, we get

ρ = m / V

ρ = 44 / 33

ρ = 4/3

ρ = 1.33 g/cm³

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What is the symbol, atomic number, # of protons, # of electrons, atomic mass, rounded atomic mass, # of neutrons (show work), and period of: aluminum

Answers

The properties of aluminum are as follows:

symbol = Alatomic number = 13number of protons = 13number of electrons = 13atomic mass = 26.981539 urounded atomic mass = 27 amunumber of neutrons = 14period : belongs to period 3

What are elements?

Elements are pure substances which are composed of the same type of atoms.

Elements are the building block of all forms of matter.

Aluminum one of the known 118 elements.

In the period table, aluminum has the following properties:

symbol = Alatomic number = 13number of protons = 13number of electrons = 13atomic mass = 26.981539 urounded atomic mass = 27 amunumber of neutrons = 14period : belongs to period 3

In conclusion, aluminum is an element in the periodic table.

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The coefficient of sliding friction on concrete is 0.30. what weight of steel can be pulled across a concrete floor by a winch with a capacity of 450 lbs?

Answers

The weight of steel can be pulled across a concrete floor by a winch with a capacity of 450 lbs to 1500 lb.

Around 7850 kg/m3, or 7.85 g/cm3, or 490 lbs/ft3, or 13231 lbs/yd3, is the unit weight of steel. The primary usage of the steel bars is as reinforcement to increase the tensile strength of concrete constructions. The weight of steel is typically expressed in kilogrammes, tonnes, and pounds.

Calculate the amount of steel in the slab as 1% of the concrete volume (0.01 x 7850 x 3 = 236kg):

Using the Thumb Rule Given that steel has a density of 7850 kg/m3, the amount of steel needed for an RCC slab should be 1% of the entire volume of concrete, or 236 kg.

The unit weight of structural steel is taken to be 7850 kg/m3 or 78.50 kN/m3 or 7.85 g/cm3 or 490 lbs/ft3 or 13,231 lbs/yd3 according to IS code and Indian standard.

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When pressure is decreased, a substance is more likely to undergo _____ or _____.

Answers

When pressure is decreased, a substance is more likely to undergo an expansion process.

What is pressure?

The total applied force per unit of area is known as the pressure.

The pressure depends both on externally applied force as well the area on which it is applied.

For constant pressure, the pressure of a substance would decrease with the increase in volume which clearly represents the process of expansion.

Thus, when pressure is decreased, a substance is more likely to undergo an expansion process.

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If the average solar constant is 1372 w/m2, what percentage of the solar constant is received at a location if insolation is measured at 343 w/m2?

Answers

Percentage of the solar constant is received at a location if insolation is measured at 343 w/m2  is 25%.

The flux density, or measuring mean of solar electromagnetic radiation, is the solar constant, represented by the symbol GSC. It refers to the sun irradiation per square meter.

At Earth's separation from the Sun, the light has an intensity of 1372 W/m2 —this is also known as the solar constant,  and the fact that it will not change over the long run.

So it would be 100%

But as mentioned in question Solar Constant is received at a location if insolation is measured at 343

W/m^2

Therefore,

Percentage of the Solar Constant is received = (343 / 1372) × 100

                                                                        = 25 %

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J. J. Thomson created an apparatus composed of a sealed glass tube with electrodes of different polarities fixed at each end. By passing a high voltage through gas in the sealed tube, he was able to create a cathode ray. What did thompson call the particles that make up a cathode ray?.

Answers

J. J. Thompson created an apparatus composed of a sealed glass tube with electrodes of different polarities fixed at each end. By passing a high voltage through the gas in the sealed tube, he was able to create a cathode ray. J.J. Thompson called the particles that makeup cathode rays as negatively charged particles.

In the experiment, the flow of particles was from the negative terminal (cathode) to the positive terminal (anode). He also placed two plates of opposite charges around the cathode rays. The cathode rays were deflected towards the positive place.

J.J Thompson concluded that the cathode rays were composed of negatively charged particles.

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Furthermore, how can it calculate its profit if revenue is in u.s. currency and most of its costs are in canadian currency?

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A company can calculate its profit by using the foreign currency exchange rates prevailing in the market. The cost incurred in foreign currency can be converted into domestic currency first. The spot rates prevailing in the market can be used for such conversion. Once the expenses are converted into the domestic currency, the profits can be computed in the normal manner as now both the revenues and the cost are in domestic currency.

What is meant by foreign exchange rate?

Foreign Exchange Rate is defined as the cost of the residential currency with regard to another currency. The reason of foreign trade is to compare one currency with another for appearing their relative values.

Foreign exchange rate can also be said to be the rate at which one currency is traded with another or it can be said as the price of one currency that's expressed in terms of another currency.

Exchange rates of a currency can be either fixed or floating. Fixed trade rate is decided by the central bank of the nation whereas the floating rate is decided by the flow of market request and supply.

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Is it correct to say that, if no net impulse is exerted on a system, then no change in the momentum of the system will occur?.

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Yes, it is correct to say that if no net impulse is exerted on a system, then no change in the momentum of the system will occur.

Impulse is defined as the instantaneous force applied to the object for a very short duration. It is given by the product of force and time. The expression of the impulse is given by

I =  F × t where ,

F is the force

t is the time

The impulse is also defined as the change in the momentum of the object, that is,

[tex]I=Pf-Pi[/tex] where [tex]Pf[/tex] is the final momentum of the object [tex]Pi[/tex] is the initial momentum of the object

Hence, if the net impulse is zero, therefore

0=[tex]Pf[/tex]=[tex]Pi[/tex]

[tex]Pf[/tex]=[tex]Pi[/tex]

hence the momentum of the object will also not change.

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