Two boxes are on the floor. Box 1 has a mass of 10 kg and is raised to a height of 2 m. Box 2 has a mass of 20 kg and is raised to a height of 1 m. Which box has gained more gravitational potential energy?

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)

What is the coefficient of kinetic friction μk between the block and the tabletop?