Physics, 20.06.2021 17:40, matthewboeckman9698

An iron nail floats in mercury and sinks in water. explain why?

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Physics, 22.06.2019 06:30, mehokkj

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?