What must be the initial velocity of a silver (Ag) bullet at a temperature of 20oC so that the heat developed when it is brought to a complete stop shall be sufficient to bring it to melting point? (Melting point of Silver is 962oC, CAg =240J/kgoC) 672 m/s=2420 km/h

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.