Determine the equivalent stiffness in (N/m) of the system shown below:

1.	Determine the equivalent stiffness in (N/m) of the system shown below:
A.	2.1 × 109
B.	4.2 × 109
C.	21 × 109
D.	42 × 109
Answer» C. 21 × 109

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Determine the equivalent stiffness in (N/m) of the system shown below:

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