PLEASE HELP
From which frame of reference would a mountain be described as moving?*
A person climbing the mountain.

A bird flying near the mountain.

A person standing on the moon watching the earth rotate.

A photographer photographing the mountain from a street.

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

How do we measure or think of speed in the united states?

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?