Prove by an activity that a body having less density than that of the liquid sinks in it

How do you tell if someone actually cares about you? and just say they do?

Ablue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.5 m/s 2 . a green car arrives at the position of the stop-light 6.5 s after the light had turned green. if t = 0 when the light turns green, at what time does the green car catch the blue car if the green car maintains the slowest constant speed necessary to catch up to the blue car? answer in units of s.

How does the strength of the electrostatic force between an electron and a proton compare to the strength of the gravitational force between them?