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Physics, 22.02.2021 17:20 noobgirlaskthequest
In a Harry Potter movie, there is a big pendulum in the Great Hall that goes back and forth once every 18.9 s. What is the length of the pendulum (if it obeys Physics instead of magic)? (Unit = m)?
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In a Harry Potter movie, there is a big pendulum in the Great Hall that goes back and forth once eve...
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