Trevor skis down a hill at a speed of 25 m/s. Friction slows him down to a
speed of 20 m/s. Which free-body diagram shows the forces acting on him?

Work = force × a. work b. energy c. distance d. momentum

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Energy flows from the producer level to the level. is called