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Physics(Please respond)

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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 1.9x10-8m, and a tangential speed at the rim of 2.7x10-5 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?

I do not know how to start this. Thank you!

  • Physics(Please respond) - ,

    v=ω•R, => ω=v/R,
    T=2π/ω

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