Arocket is fired at a speed of 75.0 m/s from ground level, at an angle of 60.0° above the horizontal. the rocket is fired toward an 11-0m-high wall, which is located 27.0 m away. the rocket attains its launch speed in a negligibly short period of time, after which its engines shut down and the rocket coasts. by how much does the rocket clear the top of the wall?

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball?