Question: The acceleration spectrum (left(S_{a} ight)) can be expressed in terms of the displacement spectrum (left(S_{d} ight)) as a. (S_{a}=-omega_{n}^{2} S_{d}) b. (S_{a}=omega_{n} S_{d}) c. (S_{a}=omega_{n}^{2}

The acceleration spectrum \(\left(S_{a}\right)\) can be expressed in terms of the displacement spectrum \(\left(S_{d}\right)\) as

a. \(S_{a}=-\omega_{n}^{2} S_{d}\)

b. \(S_{a}=\omega_{n} S_{d}\)

c. \(S_{a}=\omega_{n}^{2} S_{d}\)

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