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A 3.00 g bullet moving at 115 m/s strikes a 50.0 g stationary wooden block and...

A 3.00 g bullet moving at 115 m/s strikes a 50.0 g stationary wooden block and embeds itself in the block. The bullet is made of lead, and the specific heat of lead is 128 J/(kg · °C). Assume the thermal energy generated in the collision is equally distributed in the bullet and the block. (a) Calculate the rise of temperature (DeltaT) of the bullet if block is clamped in place so that it cannot move. (b) Calculate the rise of temperature (DeltaT) of the bullet if block is free to move (on frictionless surface). Please explain and be clear.

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