Task id12774
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Task id12774
A lead bullet pierces a wooden wall, and the speed at the moment of hitting the wall was 400 m/sec, and after passing the wall 300 m/sec. The temperature of the bullet at the moment of impact is T0 = 323°K. What part of the bullet melted if the heat of fusion of lead l = 2.5 104 J/kg, melting point 7 = 600° K, specific heat c = 125 J/kg> deg. Assume that all the heat generated is received by the bullet.
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Detailed solution. Format gif
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