Q. A woman who weighs 600 N at earth's surface stands on top of a very tall ladder so she is one earth radius above earth's surface. how much does she weigh?
Q. During a star war episode,the alpha station detected an approaching ship at a distance of 10^8km at speed of 270000000M and at the same time the alpha station released a missile at speed of 0.95c.A soon as the enemy spaceship detects the electromagnetic waves it releases the same kind of missile therefore moving at speed of 0.95c.determine the time the inhabitants of alpha station have quit after releasing their missile.