Julia throws a ball vertically upward from the ground with a speed of 5.89 m/s. andrew catches it when it is on it's way down at a height of 1.27 m from the ground. after how much time does andrew catch the ball?

"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."

What occurs during a combustion reaction

In which of the following is positive work done by a person on a suitcase