A circuit contains two batteries, each of negligible internal resistance, and two resistors as shown. The galvanometer has a current reading of zero. What is the electromotive force of battery x? m/j 2019 12 9702

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.