Which phrase best describes wave motion? movement of energy through space or a medium movement of matter through space movement of energy within a particle movement of air molecules through a medium

Because the universe is expanding what happena to light from other galaxies as it reaches earth

2. A 4-kg gun shoots a 0.1-kg bullet at 400 m/s. Find the recoil speed of the gun.

A player strikes a hockey puck giving it a velocity of 30.252 m/s. The puck slides across the ice for 0.267 s after which time its velocity is 28.452 m/s. The acceleration of gravity is 9.8 m/s 2.

The Earth is approximately 150 million kilometers away from the Sun. If light travels at a speed of approximately 300,000 kilometers per second, about how long does it take for light from the Sun to reach the Earth?

What is it called when there's an atom that has fewer neutrons than protons and more electrons than protons? l

Which is an example of transfroming potential energy to kinetic

Place the ball in the plastic bag, and twist the top so the ball is secure in the bag. Wrap the twisted portion with tape so it stays tight. Use the hole punch or scissors to poke a hole in the part of the bag that's above the ball.

Choose The units of 1/4πε0 are: A. N2C2 B. N • m/C C. N2 • m2/C2 D. N • m2/C2 E. m2/C2

What does a fern ultimately depend on as an energy source?

According to the Doppler Effect, which statement is true about a sound as it approaches you and then moves away. A) As the source approaches you, the sound waves are compressed so the pitch of the noise increases.