What are some of the challenges of scuba diving?

According to the phase diagram for water, how is the state of water determined? proceed up a vertical line at any given temperature read the phase at the intersection of any given temperature and pressure at a given pressure, proceed horizontally to the s-l or l-g line

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =