A person is making homemade ice cream. She exerts a force of magnitude 22 n on the free end of the crank handle, and this end moves in a circular path of radius 0. 28 m. The force is always applied parallel to the motion of the handle. If the handle is turned once every 1. 3 s, what is the average power being expended?.

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )