Recent content by jairo182

Then you start a second identical bowling ball rolling, at the same speed as the first, by hitting it sharply with a sledge hammer. Which process, the arm swing or the hammer blow, imparts more kinetic energy to the ball? Which process has the greater power output? Physics Work Energy Force

Which of the following processes is there a change in rest-mass due to the mass–... ...energy equivalence principle? In which is the change in rest- mass actually measurable? ( a) Warming a cup of coffee. ( b) Explosion of a fusion bomb. ( c) Lifting a book. ( d) Matter– antimatter...