E) The speed of light in air is 3.0 x 108 m/s. Its speed in the glass is 2.0 108 m/s. Calculate the refractive index of the glass.

pls I have exam

The speed of light can be used to measure the

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?

The ozone hole appears in antarctica during