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A light spring of force constant k = 164 N/m rests vertically on the bottom of a large beaker of water (Figure a). A 4.40-kg
block of wood (density = 650 kg/m³) is connected to the spring, and the block-spring system is allowed to come to static
equilibrium (Figure b). What is the elongation AL of the spring?
cm
a
www
T
AL
272
www
b

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