You are sitting in a cart at the top of a hill on a roller coaster. you have 10,500 j of gravitational potential energy. if your current weight is 539n, how tall is the hill you are sitting on.

Abucket full of water weights 4 kg and water well is 10m deep. a girl draws water from the well. it takes the girl 3 minutes to draw a bucket full of water from the well. what is the power of the girl?

How do we measure or think of speed in the united states?

What is the single most important equation in all of physics?