Abattery has a terminal voltage of 5 volts when a current of 500 milliamps flows through it. the internal resistance of the battery is 5 ohms. calculate e, the internal voltage (emf), of the battery.

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.