Which example illustrates Newton's second law? A. The force of a wheelbarrow on the ground is equal to the force of
the ground on the wheelbarrow.
B. A person pushes a wheelbarrow, causing it to move forward.
C. More mass is added to a wheelbarrow, and a larger force is
required to move it.
D. A wheelbarrow remains stationary when no one pushes on it.

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.

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples