A rock is suspended from a string in air. The tension in the string is 2.94 N. When the rock is then dunked into a liquid and the string is allowed to go slack, it sinks and comes to rest on a spring with a spring constant of 200 N/m. The spring’s final compression is 1.00 cm. If the density of the rock is 2500 kg/m3, what is the density of the liquid?
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