The tape in a videotape cassette has a total length 264 m and can play for 1.8 h. As the tape starts to play, the full reel has an outer radius of 46 mm and an inner radius of 12 mm. At some point during the play, both reels will have the same angular speed. What is this common angular speed?
Answer in units of rad/s.

Which two particles are found in the center of an atom

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) ! : )

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.