what is the force if a block of wood with mass 20 kg slides along a frictionless surface at 2 m/s squared

A piece of candy has 5 calories (or 5000 calories). if it could be burned, leaving nothing but carbon dioxide and water, how much heat would it give off?

An explanation of the Big Bang Theory

Analyze the formula W = mg to explain how an objects weight can change even when its mass remains constant.

What three things can happen to water when it falls on earth's surface

Which statements describe magnetic poles? Check all that apply.

The decomposition of a substance by an electric current is called

Along some shorelines, incoming waves cause the water to simply rise and fall rather that form a surf zone. What does this tell you about these shorlines?

Which word best describes the rate at which work is done? work energy power velocity

Explain why a valve would last longer in the pulmonary position than in the aortic position

Think about the process of heating water, the heating and upward motion of hot steam and air, and the spiral spinning. For these events, list each form of energy associated with the heat source, the water, the steam and air, and the spiral.