On a Fahrenheit scale, water freezes at 32F. What is the equivalent temperature of the Celsius scale?

What object a collides with object b and bounces back its final momentum is?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?