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PhysicsQ&A LibrarySome bacteria are propelled by motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular velocity has a radius of 1.7 x10-8m, and a tangential speed at the rim of 2.8 x10-5 m/s. (a) What is the angular speed (the magnitude of the angular velocity) of this bacterial motor? (b) How long does it take the motor to make one revolution?Question

Asked Oct 24, 2019

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Some bacteria are propelled by motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular velocity has a radius of 1.7 x10^{-8}m, and a tangential speed at the rim of 2.8 x10^{-5} m/s. **(a)** What is the angular speed (the magnitude of the angular velocity) of this bacterial motor? **(b)** How long does it take the motor to make one revolution?

Step 1

Consider the angular speed of the bacterial motor be *ω _{0}*, the angular speed of the rim of the bacterial motor be

The given values are,

Step 2

**(a)**

Write the expression for the relation between the tangential speed and the angula...

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