***URGENT*** A football player gave 150 J of energy to the football he threw. The ball had a
velocity of 17 m/s. What was its mass?

What is the length x of the side of the triangle below? (hint: use the cosine function)

"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."

Acar jack with a mechanical advantage of 6 needs to produce an output force of 600 n to raise a car. what input force is required? 6 n 100 n 600 n 3,600 n