Question

Practice Problems 12 :
1. A copper ball is dropped from a vertical height of 1200 m. If the initial temperature of copper ball at the height
is 12°C, what is its temperature on reaching the ground? Assume all its kinetic energy changes to heat energy
and sp. heat capacity of copper is 400 Jkg-1°C and g = 10 ms 2
(54°C]​

Answer 1

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