1) Explain how polarized sunglasses provide protection. In your answers, include an explanation of the meaning of polarization, two natural methods of polarization and what you would see if you rotated one polarizing lens with respect to another polarizing lens (with an explanation)
2) Given a photon with wavelength 430 nm, find the energy and momentum of the photon. What equivalent mass would a particle have if all energy of the photon were converted to mass?
3) A 1.8 kg cart moving at 9.0 m/s [E] collides with a stationary 1.2 kg cart. The head-on collision is completely elastic and is cushioned by a spring. The maximum compression of the spring during the collision is 3.0 cm find the spring constant.
4) Object 1 (with a mass of 3.0 kg) moving at 15.0 m/s [E], collides with object 2 (with a mass of 2.0 kg) initially at rest on a horizontal frictionless surface. The collision is a glancing one, with object 1 moving off at 11m/s [E 30 N], after the collision. Assume that friction is negligible. Find the velocity of object 2 after the collision.
5) A 300kg satellite is in circular orbit around the earth at a speed of 6200 m/s
a) Find the radius of the satellites orbit.
b) Find the gravitational field strength at this distance.