Light enters a piece of glass from air at an angle of 20o. It refracts at an angle of 14o. Find the index of refraction of the glass.

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

The solid that is formed and usually sinks to the bottom of a solution is the

An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?