An industrial water shutoff valve is designed to operate with 10 lb of effort force on the handle. The valve will encounter 150 lb of resistance force applied to a 3 in. diameter axle. What is the required actual mechanical advantage (AMA) of the system?

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.