A block of red rock has a volume of 0.2 m3 and a mass of 3000 kg. A block of brown rock has a volume of 0.4 m3 and a mass of 4000 kg.

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

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)

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these