1. a 2-kg bowling ball sits on top of a building that is 40 meters tall. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

Achild throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. the ball leaves her hand 1.00 m above the ground. how long is the ball in flight before it hits the ground?

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

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