A rock dropped in a graduated cylinder raises the level of water from 20 to 35 mL. The Rock has a mass of 45 g. What is the density of the rock?

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.

How much hereditary information is contain in a human sex cell

What is the momentum of a 47-gram tennis ball that is traveling at 40 m/s