A Piano Wire Has a Length of 81 Cm and a Mass

question 53

Multiple Choice

A piano wire has a length of 81 cm and a mass of 2.0 g. If its fundamental frequency is to be 394 Hz, it tension must be:

• A) 0.32 N
• B) 63 N
• C) 130 N
• D) 250 N
• E) none of these

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