Which of the following has mechanical energy? car battery compressed spring glowing incandescent lightbulb nucleus of uranium atom

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)