At the end of the ride up a steep hill, ken was at an elevation of 1600 meters above where he started. he figured out that he and his bicycle had accomplished 1,000,000 joules of work. if ken has a mass of 54 kg, what is the mass of his bicycle?

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?