A. A crow bar of length 2 m is used to lift a stone of weight 200 kg. If the fulcrum
is set 50 cm apart from the stone, how much effort should be applied to the other
end of the crowbar to balance it?
[1500 N]

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?

Two waves maximally constructively interfere at a point in space. among the options below, select the possible value of their phase difference at that point in space.a. zerob. πc. π/2d. not determinable by the information provided

The amount of potential energy possessed by an elevated object is equal to