A 500 kg crate is pushed horizontally with a force of 1500 N. If the coefficient of friction is 0.25, calculate the acceleration of the crate. I NEED HEL

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

Abeam of electrons moves at right angles to a magnetic field of 4.5 × 10-2 tesla. if the electrons have a velocity of 6.5 × 106 meters/second, what is the force acting on the electrons? the value of q = -1.6 × 10-19 coulombs.