Equal amounts of water are kept in a cap and in a dish which will evaporate faster ? why

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)

Based on the diagram of the electric field lines around the two spherical charges, what are the signs of the left and right charge respectively?

In set c, explain the difference in the magnitudes of the gravitational forces between the two pairs of objects