Which instrument family produces sound by the buzzing of lips into a mouthpiece?

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

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 would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight