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1. A copper block with a mass 1.32 kg is given an initial speed of 2.7...

1. A copper block with a mass 1.32 kg is given an initial speed of 2.7 m/s on a rough horizontal surface. Because of friction, the block finally comes to rest. Assume that 70.8 % of the initial kinetic energy is absorbed by the block in form of heat, what is the change in temperature (in - do not enter units) of the block? Data: cCu=387

2. A 2.62g aluminum bullet at 32.0°C is fired at a speed of 275 m/s into a large block of ice at 0°C, in which it embeds itself. What quantity of ice melts?

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