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Physics

Answered

A pendulum swings past it's pole 20 times in 18 seconds, what is the period of the pendulum?

Answer :

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Answer: 0.9

Explanation:

If frequency equals the amount of oscillations in one second then 20/18 = f = 1.11 and to find period (T) then we use the equation T= 1/f or in this case 1/1.11 = 0.9

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