physics department has a Foucault pendulum, a long iod pendulum suspended the ce

Question

physics department has a Foucault pendulum, a long iod pendulum suspended the ceiling The an electric circuit that keeps it oscillating with a constant plitude. When the circuit is turned off, the oscillation plitude decreases by 50% in 31 minutes. Part A What is the pendukum's time constant? Express your answer using two significant figures. T 45 min. My Answers Give Up Correct significant Figures Feedback: Your answer 44.7 min was either rounded differently or used a diferent number of sgni required for this part. Part B How much additional time elapses before the amplitude decreases to 25% of as initial value? Express your answer using two significant figures. incorrect Try Again attempts remaining 4

Explanation / Answer

Part B can be solved by using the equation t=(time constant)(ln2)

t=(45)(ln2)
t=(45)(0.693)
t=31.2 min

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