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a) $7.4 \times 10^2 \textrm{N/m}$
b) $A = 2.5 \textrm{cm}$ $f = 2.6 \textrm{Hz}$

Giancoli 6th Edition, Chapter 11, Problem 4

(1:46)

Chapter 11, Problem 4 is solved.

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Comments

K changed from 735 in a) to 753 in b). Not a big deal. Good stuff.

Thanks for the comment oliversnow1. Even though the final answers are correct I also keep saying "36cm" when I should be saying "3.6cm", even though things are written correctly. I've added this video to the list of retakes after the 7th Edition videos are done.
Best wishes,
Mr. Dychko