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A 50 gram lead bullet is fired at 450 m/s to a 3 kg block of...

A 50 gram lead bullet is fired at 450 m/s to a 3 kg block of copper and penetrates the block. Assuming that the bullet does not leave the block, if the initial temperature of the bullet is 60°C and the block is originally at 30°C,

a) Find the final temperature of the bullet-block system. (Assume that the system is isolated and there is no heat escaping the system)

b) Is the dissipated energy (due to the collision) enough to melt the bullet inside the block? Why?

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