a screw jack we whose pitch is 4.4mm is used to rasie a mass 9 tones through a height of 20cm. if the efficienc of jack is 90%calculate wasted energy of the system (take g=10m)

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 = 2.6 m below the tank bottom which is a = 6.7 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). report your answer in meters to two decimal places.