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julia-pushkina [17]
3 years ago
6

When can thermal energy in a system move from lower to higher temperatures?

Physics
1 answer:
Fed [463]3 years ago
4 0

Answer:

When the object in creases or decreases in temperature.

Explanation:

Heat flow moves energy from a higher temperature to a lower temperature. The bigger the difference in temperature between two objects, the faster heat flows between them. When temperatures are the same there is no change in energy due to heat flow. Radiation and Conduction are the two methods of heat transfer..

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A boy spins a top on a table. How can he INCREASE the total energy of this system?
babunello [35]

He can increase the total energy of the system by spinning the top faster.

<h3>What is energy?</h3>

The term energy refers to the ability to do work. The total energy of the system refers to the gravitational potential energy and the rotational energy of the  top.

Hence, he can increase the total energy of the system by spinning the top faster.

Learn more about energy:brainly.com/question/1932868

#SPJ1

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2 years ago
What provides the centripetal force needed to keep Earth in orbit?
laiz [17]

option C ............

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3 years ago
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The Sun does NOT rotate the way Earth does. Which statement best describes the difference in their rotations?
Phantasy [73]
I believe the answer is A. Have a blessed day.
6 0
2 years ago
Find the distance from a point charge q=100nC where the field intensity is equal to E=6kN/C. please include description of the r
madam [21]

Answer: 0.3872m

Explanation:

q= 100nC -->  100x10^-9 C

k= 9x10^9 Nm^2/C^2

E= 6kN/C --> 600 N/C

r=?

E= K\frac{q}{r^{2} } --> r=\sqrt{\frac{kq}{E} } Despejas "r"

Resuelves

<h3>r=\sqrt{\frac{(9x10^9 Nm^2/C^2)(100x10x^{-9}  C)}{6000N/C} }  (la x es por, no es una variable)</h3><h3>r= 0.3872983346m</h3>
4 0
3 years ago
In the standing broad jump, one squats and then pushes off with the legs to see how far one can jump. Suppose the extension of t
muminat
<h2><em><u>⇒</u></em>Answer:</h2>

In the standing broad jump, one squats and then pushes off with the legs to see how far one can jump. Suppose the extension of the legs from the crouch position is 0.600 m and the acceleration achieved from this position is 1.25 times the acceleration due to gravity, g . How far can they jump? State your assumptions. (Increased range can be achieved by swinging the arms in the direction of the jump.)

Step-by-Step Solution:

Solution 35PE

This question discusses about the increased range. So, we shall assume that the angle of jumping will be  as the horizontal range is maximum at this angle.

Step 1 of 3<

/p>

The legs have an extension of 0.600 m in the crouch position.

So,  m

The person is at rest initially, so the initial velocity will be zero.

The acceleration is  m/s2

Acceleration  m/s2

Let the final velocity be .

Step 2 of 3<

/p>

Substitute the above given values in the kinematic equation  ,

m/s

Therefore, the final velocity or jumping speed is  m/s

Explanation:

3 0
3 years ago
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