A bodybuilder lifts a 10 N weight a distance of 2.5 m.
How much energy has the weight gained?

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

In the first law of thermodynamics, triangle e=q-w, what does q stand for

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work