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13 years ago
A water rocket built from a two-liter bottle half-filled with water pressurized with compressed air can develop a thrust of 300 N. At what rate would water have to come out of the rocket to develop that thrust? The jet of water emerging from the bottle has a diameter of 2.20 cm and the density of water is 1000 kg/m3.
A) 2.70 kg/s
B) 5.30 kg/s
C) 10.7 kg/s
D) 32.1 kg/s
E) 21.4 kg/s
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13 years ago
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