What do you call the part of a musical group that supplies the rhythmic and harmonic foundation of a performance. Usually includes at least one chord instrument (guitar, piano, or keyboard), a bass instrument, and a percussion instrument (typically the drum set).

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.