We know that increasing distance between 2 bodies increases gravitational potential energy. We also know that the universe is expanding. Then from where is this extra energy comming from? ...
We know that increasing distance between 2 bodies increases gravitational potential energy. We also know that the universe is expanding. Then from where is this extra energy comming from? ...
Q1. A large open top container of negligible mass and uniform cross-sectional area A has a small hole of cross-sectional area A/100 in its side wall near the bottom. The container is kept on a smooth horizontal floor and cont ...
