Q. A 64 bullet traveling at 300 penetrates a block of ice at 0 and comes to rest within the ice.Assuming that the temperature of the bullet doesn't change appreciably, how much ice is melted as a result of the collision?
Q. A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. It takes a time of 2.30 s for the boat to travel from its highest point to its lowest, a total distance of 0.650 m. The fisherman sees that the wave crests are spaced a horizontal distance of 6.20 m apart.