Two planets in space gravitationally attract each other. if both the masses and distances are doubled, the force between them is

How to find the magnitude of the centripetal force?

What is the period of a wave if the frequency is? 5 Hz

Which sphere is NOT a part of the cycling of oxygen through Earth's systems? A. biosphere B. exosphere C. atmosphere D. hydrosphere

What are two items that have little friction between them?

Why is the sky blue scientifically?

A ball is thrown upwards with an initial velocity of 25. o m/s, what is the velocity of the ball at 11.9 m from the ground?

Can rocks be weathered by wind and chemicals in the air

1. if you rub a neutral glass rod with silk, the silk acquires a negative charge. if you rub a neutral glass rob with a rubber rob, the rubber rod acquired a negative charge.

What's a scientific inquiry

Calculate work If force of 50 Newton's and distance is 6 meters.