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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The Answer of 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

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