Solve this problem 3. An unknown mass, m, attached at the end of an unknown spring, k, has a natural frequency of95 Hz. When a 0.5 kg mass is added to m, the natural frequency is lowered to 75 Hz. The springconstant (k) of the system is (5pts)a) 294.7 kN/mb) 472.8 kN/mc) 7.47 kN/md) 69.2 kN/m

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Answered: 3. An unknown mass, m, attached at the…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Problem 1.1MA

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3. An unknown mass, m, attached at the end of an unknown spring, k, has a natural frequency of 95 Hz. When a 0.5 kg mass is added to m, the natural frequency is lowered to 75 Hz. The spring constant (k) of the system is (5pts) a) 294.7 kN/m b) 472.8 kN/m c) 7.47 kN/m d) 69.2 kN/m