Which statement is true about a polarized object? A. It gains electrons and becomes negatively charged. B. It gains protons and becomes positively charged. C. The number of positive and negative charges can be the same. D. It has to be a metal. E. There is no change in the distribution of the charge in the object.

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

Arrange the images in order to show how lake-effect snow occurs.

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.