Howard is flying a kite and wants to find its angle of elevation. the string on the kite is 32 meters long and the kite is level with the top of a building that he knows is 28 meters high. to the nearest tenth of a degree, find the angle of elevation.

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.

What kind of simple machine is a catapult?

Difference between series and parallel circuits