Some bacteria are propelled by motors that spin hair-like, Physics

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Some bacteria are propelled by motors that spin hair-like

Some bacteria are propelled by motors that spin hair-like flagella.A typical bacterial motor turning at a constant angular velocityhas a radius of 1.9x10-8m, and a tangential speed at therim of 3.0x10-5 m/s.

(a) What is theangular speed (the magnitude of the angular velocity) of thisbacterial motor?

(b) How long does it take the motor to make one revolution?

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