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

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

Avoltaic cell converts chemical energy to

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.