What is the speed of gravity

What is a light year? The time it takes for light to reach Earth from the sun, the distance light travels in one year, the time it takes for light to travel around the sun or the distance light can travel in a year before it burns out.

What is frame of reference equations and how to apply?

What happens to the molecules when a gas is compressed? A. They maintain their temperature. B. There is a drop in temperature. C. There is a rise in temperature.

How could you separate a mixture of oil and water?

Why is having a scientific model of the atom important

Why is the mechanical advantage of using a single pulley always 1? Assume there's no friction.

This is the phase of matter with fixed shape and volume.

Power lines sag more between telephone poles in the summer than in winter. Explain why that is so.

How is force defined?

A bullet traveling at 5.0 X 10^2 meters per second is brought to rest by a 50 newton * second impulse. what is the mass of the bullet?