A 5kg ball going 30m/s experiences a force which causes it to slow down to 10 m/s. What was the impulse on the ball.

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?