It is a cheap energy source
Answer: During the action there was equal and opposite force.
Explanation: since the force exerted by Henry is equal to the resisting force of the beam it won't move.
Although most of the tissues in adult organisms maintain a constant size, the cells that make up these tissues are constantly turning over. Therefore, in order for a particular tissue to stay the same size, its rates of cell death and cell division must remain in balance.
