A 153-Kg Piece of Iron Is Hung by a Vertical Ideal

question 385

Multiple Choice

A 1.53-kg piece of iron is hung by a vertical ideal spring. When perturbed slightly, the system is moves up and down in simple harmonic oscillations with a frequency of 1.95 Hz and an amplitude
Of 7.50 cm. If we choose the total potential energy (elastic and gravitational) to be zero at the
Equilibrium position of the hanging iron, what is the total mechanical energy of the system?

• A) 0.955 J
• B) 0.633 J
• C) 0.844 J
• D) 0.646 J
• E) 0.000 J

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