Some bacteria are propelled by biological motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular velocity has a radius of 1.60 10-8 m, and a tangential speed at the rim of 2.32 10-5 m/s.
(a) What is the angular speed (the magnitude of the angular velocity) of this bacterial motor? rad/s
(b) How long does it take the motor to make one revolution? s