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The Effective Force Constant of Two Springs. Two springs with the same unstretched length hut different force constants k1 and k2 are attached to a block with mass m on a level, frictionless surface. Calculate the effective force constant keff in each of the three cases (a), (b), and (c) depicted in Fig. P14.92. (The effective force constant is defined by ΣFx = −keffx.) (d) An object with mass m, suspended from a uniform spring with a force constant k, vibrates with a frequency f1. When the spring is cut in half and the same object is suspended from one of the halves, the frequency is f2. What is the ratio f1/f2?
Figure P14.92
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