When light waves first enter the eye, they first pass through this transparent layer where they are refracted

Avalue that describes how heavy an object is and is related to the force of gravity is

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.)

If frequency goes up, what happens to wavelength? does it get shorter or longer?