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water flows steadily from the left pipe section (radius r1 = 2.00R), through the middle section...

water flows steadily from the left pipe section (radius r1 = 2.00R), through the middle section (radius R = 0.0106 m), and into the right section (radius r3 = 3.00R). The speed of the water in the middle section is 0.402 m/s. What is the net work done on 0.310 m3 of the water as it moves from the left to the right section?

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