If a ball is lifted 2 meters off the ground and 5 Newtons of force were needed to move it, what amount of work has been done? :3

(Please don’t give me a link they don’t work for me I need a direct answer plzz)

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

An object's buoyant force and weight mean the same thing.a. trueb. false