A meterstick is supported on a fulcrum at the 50 cm mark. Two masses of 100 g and 50 g are suspended from the meterstick at the 20 cm and 60 cm marks respectively. At what mark should a
third mass of 100 g be placed to bring the meterstick back to equilibrium?

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.