Red, green, and blue light rays each enter a drop of water from the same direction. which light ray's path through the drop will bend the most, and which will bend the least? why?

Atomic nuclei of almost all elements consist of

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)

By what primary heat transfer mechanism does the sun warm the earth?