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maw [93]
3 years ago
13

During cooling, the kinetic energy of the molecules falls. Why does this happen?

Physics
1 answer:
cricket20 [7]3 years ago
5 0

Answer:

The motion of the molecules slow down

Explanation:

In heating process, increase in the temperature increases the motion of the molecules and hence it gains the kinetic energy and moves.

While in the cooling process, decrease in temperature reduces the speed or motion of the molecules and that's why during cooling kinetic energy of the molecules falls down.

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If the thrower takes 0.90 s to complete one revolution, starting from rest, what will be the speed of the discus at release?
Marysya12 [62]
Ω₀ = the initial angular velocity (from rest)
t = 0.9 s, time for a revolution
θ = 2π rad, the angular distance traveled

Let
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ω =  the final angular velocity

The angular rotation obeys the equation
(1/2)*(α rad/s²)*(0.9 s)² = (2π rad)
α = 15.514 rad/s²

The final angular velocity is
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3 years ago
The maximum value of magnetic in an electric field 3.2 *10^4​
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Answer:

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One of the characteristic of sound enogy Similar<br>to light energy is?​
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6 0
3 years ago
A 5.31 kg object is swung in a vertical circular path on a string 2.99 m long. The acceleration of gravity is 9.8 m/s 2 . If the
11111nata11111 [884]

Answer:

T = 120.3 N

Explanation:

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g = 9.8 m/s²

Therefore,

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T = 68.27 N + 52.03 N

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4 0
3 years ago
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saw5 [17]

Explanation:

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...

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3 years ago
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