Aracquet ball with mass m = 0.223 kg is moving toward the wall at v = 14.7 m/s and at an angle of θ = 27° with respect to the horizontal. the ball makes a perfectly elastic collision with the solid, frictionless wall and rebounds at the same angle with respect to the horizontal. while the ball is in contact with the wall, the average force the wall exerts on the ball has a magnitude of f = 94 n. 1)what is the magnitude of the initial momentum of the racquet ball?

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?