What equals the number of protons in an atom

Briefly explain how an electric generator works.

Car A rear ends Car B, which has twice the mass of A, on an icyroad at a speed low enough so that the collision is essentiallyelastic. Car B is stopped at a light when it is struck. Car A hasmass m and speed v before the collision.

Quick Physics Questions! Will give medal! Which of these is the best example of an elastic collision? A rubber ball is dropped from 1.2 m and bounces back up to a height of 0.8 m.

A car initially travels north and then turns to the left along a circular curve. This causes a package on the seat of the car to slide toward the right side of the car.

Acceleration is a vector quantity. O O A. True B. False

What conditions in the nucleus are likely to result in the nucleus breaking apart? A. When the repulsion of the strong force is weaker than the repulsion of the electrostatic force B.

What color do you see when all colors of light are reflected

A ball is thrown with a velocity of 20 m/s at an angle of 60 degrees above the horizontal. What is the horizontal component of its instantaneous velocity at the the exact top of its trajectory?

You pull on a wagon resting on the sidewalk. What will happen next. A. The wagon does not move because the wagon applies more force to you than you apply to the wagon. B. The wagon moves because you apply more friction to the ground. C.

If someone travels 3000 feet in one second, how far will it travel in 18 minutes