"Middle C", also known as "Do" on the fixed do-solfege scale, is a note used when playing or singing music. The frequency of Middle Cis 261.63Hz, and the wavelength is 1.3187m. What is the speed of sound for "Middle c"

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.