A39.5 kg child stands at the center of a 125 kg playground merry-go-round which rotates at 3.10 rad/s. if the child moves to the edge of the merry-go-round, what is the new angular velocity of the system? model the merry-go-round as a solid disk

Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.

Diverging mirrors and lenses always produce images

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.