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A container of water has a cross-sectional area of Ac = 0.25m². A piston with mass m₂ = 18kg, sits on top
of the water as shown in Figure 1. The height of the water which the piston is sitting on is h₁ = 0.45m.
There is a spout located h₂ = 0.17m from the bottom of the tank, open to the atmosphere, and a stream
of water exits the spout. The cross sectional area of the spout is A, = 8.5 × 10–³m². A valve on the spout
is closed. How much force is the water in the spout exerting on the valve? [10pt.]
Sagot :
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