A seesaw is 4.0m long with a pivot at its midpoint. A boy weighs 400N sits at a distance of 1.5 m from the pivot. His sister weighs 400N Calculate the distance at which the girl must sit if the beam is ti be balanced

At the negative terminal of the battery the electron has electric potential energy. what happens to this energy as the electron jumps from the negative to the positive terminal?

Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?

How is an electron dot structure used to represent a covalent bond?