You push on a door and it opens. Explain what happens in terms of action-reaction forces 30 PTS! ASAP

How many times did thomas edison mess up the light bulb

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)

Of is j/kg·k. if a 2.6 kg of isk to k,is ?