Difference between gravitation and gravitational force

Which of the following best describes constructive forces?

A proton, mass 1.67 * 10-27 kg and charge + 1.6 * 10-19 c, moves in a circular orbit perpendicular to a uniform magnetic field of 0.90 t. find the time for the proton to make one complete circular orbit.

How many stars our thier in the universe

Why do we experiment

A bicyclist is moving at a speed of 5.5 m/s. she squeezes the brakes, giving her an acceleration of - 2.1 m/s². how fast is the bicyclist going after 0.3 seconds of applying the brakes?

Give the definition for diffusion. (A) gas molecules mix unequally average distance between collisions (B) gas molecules escape from a container into a vacuum through a small hole (C) gas molecules mix equally (D) gas molecules spread out in a

As resistance goes up, what happens to the current?

1. A 0.828-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. a) Find the momentum of the electron. b) Find the kinetic energy of the electron.

When are you most aware of your motion in a moving vehicle: when it is moving steadily in a straight line or when it is accelerating?

The force of gravity on a person or object on the surface of a planet is called?