18. Some devices use an instrument based on the princip

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18. Some devices use an instrument based on the principle that when the liquid level reaches the reference mark at a certain height, the valve opens and fluid begins to pour (Figure). S = valve area 9 cm2, its mass m = 300 g, the spring is compressed from its equilibrium position to Δx = 1 cm. Determine the spring constant k, if the height of the reference mark h = 23,2 cm, and as the liquid is water (ρ = 1 g / cm3).

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)


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