Consider a sphere of radius a that is charged over its volume with a charge density p= and is situated in free space. the electric field intensity vector at a point whose radial distance from the sphere center is r is the same as e due to a point charge placed at the sphere center for the following range of values of r only: a-a

Anybody wanna ? (picture included? )

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?