Find the minimum speed of a lead bullet

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It is claimed that if a lead bullet goes fast enough, it can melt completely when it comes to a halt suddenly, and all its kinetic energy is converted into heat via friction. Find the minimum speed of a lead bullet (initial temperature = 39.0° C) for such an event to happen? (Use Lf = 2.32 104 J/kg and melting point = 327.3°C.)

Reference no: EM13537287

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