(a) suppose that a nascar race car is moving to the right with a constant velocity of +93 m/s. what is the average acceleration of the car? (b) twelve seconds later, the car is halfway around the track and traveling in the opposite direction with the same speed. what is the average acceleration of the car?

The earth remains in orbit around the sun due to the force of gravity. how does the force of gravity exerted by the sun on the earth compare to the force of gravity exerted by the earth on the sun?

Which atomic model was proposed as a result of j. j. thomson’s work?

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?