A 30-caliber rifle with a mass of 2.94 kg fires a 7.33- g bullet with a speed of 656 m/s with respect to the ground. What kinetic energy is released by the explosion of the gunpowder that fires the bullet? (Note there is a tolerance 0.1 percent for the answer) ____A 8.65- g bullet from a 9-mm pistol has a velocity of 399.0 m/s. It strikes the 0.705- kg block of a ballistic pendulum and passes completely through the block. If the block rises through a distance h = 25.85 cm, what was the velocity of the bullet as it emerged from the block?