Which type. of diversity is being lost as the population of rhinoceros become very small

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

If y gets smaller as x gets bigger and y have an relationship?

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)