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Q. A particular guitar string is supposed to vibrate at 200 Hz, but it is measured to actually vibrate at 209 Hz. By what percent should the tension in the string be changed to get the frequency to the correct value?

Q. Calculate the period and frequency of a 3.5 m long pendulum at the following locations:

a) the north pole, where acceleration due to gravity is 9.832 m/s^2

b) chicago, where acceleration due to gravity is 9.803 m/s^2

c) jakarta, indonesia, where acceleration due to gravity is 9.782 m/s^2

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Category:- Physics
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