A person uses 50 N of force on a machine. Because of the 50 N force, the machine lifts a 250 N object. What is the mechanical advantage of the machine?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?