Bobby has a notebook sitting on a desk. When he tilts the desk, it slides off of the desk. Which force causes it to slide off? * 1. speed
2.gravity
3.friction
4.acceleration

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)