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  4. A metal ball-bearing of specific heat capacity c, moving with speed v, is brought to rest. All its kinetic energy is converted into thermal energy which it absorbs, causing a temperature rise Δ θ. What was the value of v :

Q. A metal ball-bearing of specific heat capacity , moving with speed , is brought to rest. All its kinetic energy is converted into thermal energy which it absorbs, causing a temperature rise . What was the value of :

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Solution:

We use


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