diving to work one morning, you get a flat tire. when using the car jack, you apply 120 N of force to the jack and the jack in turns applies 2000 N of force to lift the car up. what is the mechanical advantage of the jack

Write the equation for momentum, first using symbols for the variables, then using words for the variables.

Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.