Exercise on Modals: (Class 8) Why ________ I care about your problems? (Can/should) Tom and Rebecca give their daughter a lot of presents. They ________ really love her. (can/must) We ________ go...
A cylindrical piece of cork of base area A density p and height L floats in a liquid of density pL. The cork is depressed slightly and then released. Show that the cork oscillates up and down simple...