water enters the constant 130 mm inside diameter tubes of a boiler at
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Water enters the constant 130-mm inside-diameter tubes of a boiler at 7 MPa and 65°C and leaves the tubes at 6 MPa and 450°C with a velocity of 80 m/s. Calculate the velocity (m/s) of the water at the tube inlet. 80 О 0.0207 О 1.56 --0