Which of the following rays is NOT possible for a converging lens?

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)

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a. true or b. false

Which of the following describes how a microwave heats food