The density of water is 999.73 kg m-3 at a temperature 10⁰C and 958.38 kg m-3 at a temperature of 100⁰C. Calculate the average
coefficient of volume expansion for water in that
range of
temperature

Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.