What was the average speed of the car for the entire 8 hour trip?

Which two objects have the greatest gravitational force acting between them

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)