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A pendulum has 12 cycles in 3 second. What is its frequency? a.15Hz b.4Hz c.36Hz d.9Hz
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A pendulum has 12 cycles in 3 second. What is its frequency?

a.15Hz
b.4Hz
c.36Hz
d.9Hz

User Akajack
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Your answer can be c your welcome
User Evanchin
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