A beam of light in air strikes the surface of a smooth piece of plastic having an index of refractionof 1.55 at an angle with the normal of 20 degrees. The incident light has component E-field amplitudes parallel and perpendicular to the plane of incidence of 10.0 V/m and 20 V/m respectively. Determine the corresponding reflected field amplitudes. (10 Points)

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603