What is the length of the string
A 232 g ball is tied to a string. It is pulled to an angle of 5.0 degree and released to swing as a pendulum. A student with a stopwatch finds that 23 oscillations take 20 s. What is the length of the string?
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How much more precisely should this quantity be determined in order to make the uncertainty terms associated with L and r equal to each other?
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