34. The protein dynein powers the flagella that propel some unicellular organisms. Biophysicists have found that dynein is intrinsically oscillatory and that it exerts peak forces of about 1.0 pN when it attaches to structures called microtubules. The resulting oscillations have amplitude 15 nm. (a) If this system is to be modeled as a mass-spring system, what's the associated spring constant? (b) If the oscillation frequency is 70 Hz, what's the effective mass? (Hint: 1 pN=1.0×10-12 N, 1 nm=1.0×10-9 m)

34. The protein dynein powers the flagella that propel some unicellular organisms. Biophysicists have found that dynein is intrinsically oscillatory and that it exerts peak forces of about 1.0 pN when it attaches to structures called microtubules. The resulting oscillations have amplitude 15 nm. (a) If this system is to be modeled as a mass-spring system, what's the associated spring constant? (b) If the oscillation frequency is 70 Hz, what's the effective mass? (Hint: 1 pN=1.0×10-12 N, 1 nm=1.0×10-9 m)

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Description: Phy 34. The protein dynein powers the flagella that propel some unicellular organisms.Biophysicists have found that dynein is intrinsically oscillatory and that it exertspeak forces of about 1.0 pN when it attaches to structures called microtubules.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter2: One Dimensional Motion

Section: Chapter Questions

Problem 18PQ

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