What percent of the world is tropical climates?

The amount of potential energy possessed by an elevated object is equal to what?

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g

Aball horizontally thrown from a cliff at 8m/s