10) The closest star to the earth (other than

our sun) is 3.97 x 1016 meters away. How

much time does it take for light to travel from

this star to earth?

Why can velocity and speed be interchanged in the formulas

A medical facility does MRIs for sports injuries. Occasionally a test yields inconclusive results and must be repeated.

A gas is confined in a cylinder with a piston. What happens when work is done on the gas?

A device for training astronauts and jet fighter pilots is designed to rotate the trainee in a horizontal circle of radius 11.0 m. if the force felt by the trainee is 7.

Where do all the elements that form planets come from

If the weight is 950 newtons, what is the mass?

You are standing against the wall near a corner of a large building. A friend is standing against the wall that is around the corner from you. You can't see your friend. How is it that you can hear her when she talks to you?

What is general relativity in easy terms?

Temperature and volume are directly or inversely

My Notes A basketball rolls across a classroom floor without slipping, with its center of mass moving at a certain speed. A block of ice of the same mass is set sliding across the floor with the same speed along a parallel line.