A 90-M-Long High-Voltage Cable Is Suspended Between Two Towers

question 14

Multiple Choice

A 90-m-long high-voltage cable is suspended between two towers.The mass of the 90-m cable is 100 kg.If the tension in the cable is 25 000 N,what is the lowest frequency at which this cable can oscillate?

• A)0.83 Hz
• B)1.00 Hz
• C)1.7 Hz
• D)2.00 Hz
• E)3.3 Hz

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