A0.02 kg bullet initially traveling at 500 m/s imbeds itself in a 2 kg block. what is the kinetic energy of the block immediately after the collision

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

Why should seat belts not be mandatory quick plz

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2