Fill in the blank. an object’s change in velocity during a time interval, divided by the time interval, during which the velocity changed, is its what is the blank?

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)

Which describes increasing the efficiency of energy resource

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.