### What is the enhancement in temperature of bullet

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Q. A flight attendant pulls her 63-N flight bag a distance of 277-m along a level airport floor at a constant velocity. The force she exerts is 35N at an angle of 57° above the horizontal. Determine the work completed by the force of friction on flight bag.

Q. A 5-g lead bullet travelling at 235m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet as the other half is transmitted to the tree, what is the enhancement in temperature of bullet?

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