Some bacteria are propelled by biologicalmotors that spin hair-like flagella. A typical bacterial motorturning at a constant angular velocity has a radiusof 1.36 x10-8m, and a tangential speed at the rimof 2.21 x 10-5m/s.
a) What is the angular speed (the magnitude ofthe angular velocity) of this bacterial motor?
b) How long does it take the motor to make one revolution?