A 100 Kg Mass Is Attached to the End of a a 2.00

question 6

Multiple Choice

A 10.0 kg mass is attached to the end of a 2.00 m long brass rod, which has a diameter of 1.00 mm and negligible mass. The mass at the end is pulled, stretching the rod slightly, and then released. If the elastic modulus of brass is 9.10 × 10¹⁰ N/m², then the frequency of the resulting oscillations is

• A) 6.20 Hz.
• B) 7.51 Hz.
• C) 7.95 Hz.
• D) 8.21 Hz.
• E) 9.51 Hz.

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