A lead bullet a 15°C is brought to rest on hitting a target. If the bullet thereby just melts completely, find the velocity of bullet just before impact. Assume that all the heat produced on impact remains in bullet. Sp. ht. of lead = 0.03 cals/g/°C, melting point of lead = 325°C, L of fusion of lead = 5 cal/g, I= 4.2 x 107 ergs/cal. %3D
A lead bullet a 15°C is brought to rest on hitting a target. If the bullet thereby just melts completely, find the velocity of bullet just before impact. Assume that all the heat produced on impact remains in bullet. Sp. ht. of lead = 0.03 cals/g/°C, melting point of lead = 325°C, L of fusion of lead = 5 cal/g, I= 4.2 x 107 ergs/cal. %3D
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Use given value of Spc. Heat of lead.
Transcribed Image Text:A lead bullet a 15°C is brought to rest on hitting a target. If the bullet thereby just melts
completely, find the velocity of bullet just before impact. Assume that all the heat produced on
impact remains in bullet. Sp. ht. of lead = 0.03 cals/g/°C, melting point of lead = 325°C, L of
fusion of lead = 5 cal/g, J = 4.2 x 107 ergs/cal.
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