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Help with 14,15 Question 14 A pendulum with a heavy mass swings differently than a pendulum with a lighter mass True F False O True

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Question 14 A pendulum with a heavy mass swings differently than a pendulum with a lighter mass True F False O True False Question 15 A tuning fork with a frequency of 660 Hz resonates at the third harmonic frequency in an open-open air column. If the speed of sounds is 343 m/s, what is the length of the air column? A 13 cm 16.PNG B. 26 cm C. 43 cm D. 78 cm

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