Density of Bowling Balls Two bowling balls of the same size but different masses are weighed, their densities calculated, and then placed in water. The heavy ball (6.6 kg) sinks; the light ball (3.1 …
Safety Leaking Cup Drop A cup with a hole leaks water when held stationary but stops leaking when dropped. In the cup's freely falling reference frame, the effective gravity is zero, eliminating the hydrostatic …