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Solved: A tuning fork labelled 392 Hz has the tip of each
Chapter 14, Problem 25E(choose chapter or problem)
Problem 25E
A tuning fork labelled 392 Hz has the tip of each of its two prongs vibrating with an amplitude of 0.600 mm. (a) What is the maximum speed of the tip of a prong? (b) A housefly (Musca domestica) with mass 0.0270 g is holding onto the tip of one of the prongs. As the prong vibrates, what is the fly’s maximum kinetic energy? Assume that the fly’s mass has a negligible effect on the frequency of oscillation.
Questions & Answers
QUESTION:
Problem 25E
A tuning fork labelled 392 Hz has the tip of each of its two prongs vibrating with an amplitude of 0.600 mm. (a) What is the maximum speed of the tip of a prong? (b) A housefly (Musca domestica) with mass 0.0270 g is holding onto the tip of one of the prongs. As the prong vibrates, what is the fly’s maximum kinetic energy? Assume that the fly’s mass has a negligible effect on the frequency of oscillation.
ANSWER:Solution 25E
Problem (a)
Step 1:
Frequency of the tuning fork f = 392 Hz
Amplitude of vibration A = 0.600 mm or 6.00 x 10-4 m
Mass of the fly m = 0.027 g or 0.27 x10-4 kg