The speed of light in a diamond is 1.22 x 108 m/s. Calculate the index of refraction for a diamond.

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great. d) about 10 times as great.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

What is the gravitational attraction between a dating couple whose centers of mass are 0.630 m apart if the boy weighs 715 n and the girl weighs 465 n?