Aplayground merry-go-round of radius 1.6 m has a moment of inertia 192 kg. m2 and is rotating at 11 rev/min about a frictionless vertical axle. facing the axle, a 21 kg child hops onto the merry-go-round, and manages to sit down on the edge. what is the new angular speed of the merry-go-round? answer in units of rev/min.

The particles of the gas inside the ball heats up, bouncing off each other and spreading farther apart.hope my answer has you : )

If the heat engine is a perfect carnot cycle engine, thenefficiency = (t2-t1)/t2   where t1=temperature of cold reservoir ( ° k) = 135            t2=temperature of hot reservoir ( ° k)   = 325thereforeefficiency = (t2-t1)/t2 = (325-135)/325 = 0.5846 = 58%  note: this is the theoretical maximum efficiency of a perfect heat engine.   real-life engines do not achieve this value.

Newtons laws of motion