The measure of the average kinetic energy of a substance is called the________?

Answers

Answer 1

Answer:
Temperature is the measure of average kinetic energy of the substance. Temperature rises when the average kinetic energy increases. Kinetic energy is related to the movement of the molecules within the substance. In this case, temperature and kinetic energy are always proportional to each other

Answer 2

Answer: pretty sure its the temperature

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A rotating satellite has the same angular velocity as the earth. If the satellite is 5x10^7 m from the center of the earth, what is its tangential velocity

Answers

We will want to be using radians for this question so that we can calculate arc lengths easily.

The angular velocity of the earth is $360^(o)/24\ hr=(2\pi)/(24\ hr)=(\pi)/(12)/hr$

The satellite tangential velocity is the distance from the earth times the angular velocity, which is
$5*10^(7)\ m*(\pi)/(12)/hr\approx1.309*10^(7)\ m/hr$

For meters per second, we divide by the number of seconds in an hour, which is 3600:
$1.309*10^(7)\ m/hr*(1\ hr)/(3600\ s)\approx3636\ m/s$

Final answer:

The tangential velocity of a satellite, with the same angular velocity as the Earth and 5x10^7 m distance from Earth's center, is calculated to be approximately 3650 m/s.

Explanation:

The tangential velocity of a satellite is given by the formula v = rω, where 'v' is the tangential velocity, 'r' is the radius (distance from the center of the Earth to the satellite), and 'ω' is the angular velocity. The referenced satellite's angular velocity is the same as that of the Earth, which is approximately 7.292 x 10^-5 rad/s. Given r = 5x10^7 m (the satellite's distance from Earth), we input these values into the formula:

v = (5x10^7 m)(7.292 x 10^-5 rad/s)

Upon calculation, we find that the satellite's tangential velocity is approximately 3650 m/s.

Learn more about Tangential Velocity here:

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A plane flying against a jet stream will travel faster than a plane traveling with a jet stream.

Answers

Their "airspeeds" (speed through the air) are equal, but the one traveling in the
same direction as the jet-stream appears to move along the ground faster.

FALSE, THE PLANE HAS MORE RESISTANCE THAN THE PLANE TRAVELING WITH THE JET STREAM

pyrex graduated cylinder has a volume of exactly 200 ml at 0° celsius. if it's temperature increased to 100° celsius what's volume increase or decrease compute the change in volume ?

Answers

1. The volume will increase.

2. The change in the volume is 73 mL

1. Determination of the nature of the new volume.

From the question given above, the following data were obtained:

Initial volume (V₁) = 200 mL

Initial temperature (T₁) = 0 °C = 0 + 273 = 273 K

New temperature (T₂) = 100 °C = 100 + 273 = 373 K

New volume (V₂) =?

Using the Charles' law equation, the new volume of the cylinder can be obtained as follow:

V₁ / T₁ = V₂ / T₂

200 / 273 = V₂ / 373

Cross multiply

273 × V₂ = 200 × 373

273 × V₂ = 74600

Divide both side by 273

V₂ = 74600 / 273

V₂ ≈ 273 mL

From the above calculation, we can see that the new volume increased.

2. Determination of the change in the volume.

The change in the volume can be obtained as illustrated below:

Initial volume (V₁) = 200 mL

New volume (V₂) = 273 mL

Change in volume (ΔV) =?

ΔV = V₂ – V₁

ΔV = 273 – 200

ΔV = 73 mL

Learn more about Charles' law:

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Two point charges are separated by 6 cm. The attractive force between them is 20 N. Find the force between them when they are separated by 12 cm. (Why can you solve this problem without knowing the magnitudes of the charges

Answers

The force between the two point charges is "5 N".

Force and magnitudes:

The total of almost all of the forces operating on an item is referred to as the magnitude of force. When some of the forces operate in the same direction, this same magnitude rises. Whenever forces occur in opposite directions around an item, the amount of something like the force diminishes.

Distance between charges, d = 6 cm

Attractive force, F = 20 N

Separated, d' = 12 cm

We know the formula,

F = $k (q_1q_2)/(d^2)$

or,

F $\propto (1)/(d^2)$ ...(Equation 1)

New force will be:

F' $\propto (1)/(d'^2)$ ...(Equation 2)

From "Equation 1" and "Equation 2", we get

→ $(F)/(F') =(d'^2)/(d^2)$

By substituting the values,

$(20)/(F') =(12^2)/(6^2)$

$(20)/(F') =(144)/(36)$

F' = 5 N

Thus the approach above is appropriate.

Find out more information about force here:

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Answer:

The force between them when they are separated by 12 cm is 5 N.

Explanation:

Distance between two point charges, d = 6 cm

The attractive force between them is 20 N, F = 20 N

Let F' is the force between them when they are separated by 12 cm, d' = 12 cm

The force between point charges is given by the formula as :

$F=k(q_1q_2)/(d^2)$

$F\propto (1)/(d^2)$ ........(1)

New force,

$F'\propto (1)/(d'^2)$ ............(2)

From (1) and (2) :

$(F)/(F')=(d'^2)/(d^2)\n\n(20)/(F')=(12^2)/(6^2)\n\nF'=5\ N$

So, the force between them when they are separated by 12 cm is 5 N. Hence, this is the required solution.

What does Lenz's law mean?

Answers

named after the physicist Heinrich Lenz who formulated it in 1834, says: The direction of current induced in a conductor by a changing magnetic field due to Faraday's law of induction will be such that it will create a field that opposes the change that produced it.

Very popular in electromagnetism physics

The induced current in a loop is in the direction that creates a magnetic field thatopposes the change in magnetic flux through the area enclosed by the loop(That is, the induced current tends to keep the original magnetic flux through the circuit from changing). This is what Lenz's law states.

A bicyclist travels 60.0 in 3.5 hours. what is the cyclists average speed

Answers

Average speed = (distance)/(time to cover it). ..... (60)/(3.5 hours) = 17.143 per hour. ... (The 17.143 could be nanometers, inches, miles, light years etc. No unit is given in the question.)

60 miles in 3.5 hours. we need to divide to find how many miles he went in one hour.

so 60 divided by 3.5 is 17.1428571429

If you round he was going about 17 miles an hour

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