Friction is a force that ___ or works against motion

Xavier throws a tennis ball to his friend Olaf at a 20° angle relative to the ground with an initial velocity of 18 m/s. The tennis ball travels 30 m until Olaf catches it.

A 6kg rock is thrown vertically upward from the top of a cliff that is 28m high. It was thrown with a speed of 11ms. Calculate the greatest height of the rock as measured from the base of the cliff.

What is the speed of a wave with a wavelength of 10 mm and a frequency of 5.0 Hz? A. 2 mm/s B. 0.5 mm/s C. 15 mm/s D. 50 mm/s

Is it possible for an object that has a constant negative acceleration to change the direction in which it is moving.

Match the following vocabulary words with their definitions: Question 1 options: rate of change in velocity, which is the change in velocity divided by the change in time the rate at which an object changes position when traveling in a certain

A tow truck pulls a 500 kg car so that the car accelerates 2 m/s2. What is the net force on the car? 250 N 498 N 1000 N 502 N

Which force keeps you near earths surface?

Name one process that requires a force in the human body.

Which describes the electric forces inside an atom

Why can radio telescopes be used 24 hours a day?