Fifty grams of lead shot is placed in a light cylinder that is 1.6 m long and is closed at both ends. When the cylinder is placed in a vertical position and inverted, the shot falls the length of the cylinder. Calculate the increase in temperature of the lead when this process is repeated 75 times. Assume no heat loss to the surroundings. (The specific heat of lead is 0.03 kcal/(kg C). One kcal equals 4187 J.)