The solid homogeneous cylinder is released from rest on the ramp. determine the magnitudes of the acceleration of the mass center g and the friction force exerted by the ramp on the cylinder.

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference

Amira pulls a 3 pound wagon 4 feet. how much work has she done?