Need help ~

just an answer without explanation will work too .

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

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 pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?