What is in the universe

A person is standing on a completely frictionless surface. Can they walk on this surface? Explain! What could they do to move across the surface? Explain!

Plasma is the most abundant state of matter in the universe

As you throw a ball, you exert a force on that ball of 4.2 N. You exert this force on the ball while the ball moves a distance of 0.50 m. The ball then leaves your hand and travels a horizontal distance of 8.5 m to your friend.

A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. the mass of the ball is 0.38 kg. the ball approaches the cushion with a velocity of + 2.50 m/s and rebounds with a velocity of - 1.90 m/s.

What is the wavelength of an x-ray whose frequency is 1.0*10^18 Hz?

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.