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October 21, 2014

Homework Help: phys

Posted by opp on Thursday, April 26, 2012 at 1:12am.

A 10.9-g iron bullet with a speed of 4.00 102 m/s and a temperature of 20.0 C is stopped in a 0.400-kg block of wood, also at 20.0 C.
(a) At first all of the bullet's kinetic energy goes into the internal energy of the bullet. Calculate the temperature increase of the bullet. (b) After a short time the bullet and the block come to the same temperature T. Calculate T, assuming no heat is lost to the environment.

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