A 1.80 m radius playground merry-go-round has a mass of 120 kg and is rotating with an angular velocity of 0.310 rev/s. What is its angular velocity, in rev/s, after a 27.5 kg child gets onto it by grabbing its outer edge

True or false graphs must include scales that increase by the same amount

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)

The velocity of a car traveling in a straight line increases from 0 meters/second to 30meters/second in 8 seconds. what is the average acceleration of the car?