A plexiglass tube (piezometer) is mounted on a pipe as shown in Figure P9.2.1. Another plexiglass tube with a 90° bend (i.e., Pitot tube) is inserted into the center of the pipe and directed toward the current. For a given discharge, the piezometer registers a water height of 320 cm, and the Pitot tube registers a water height of 330 cm. Determine the water pressure (kPa) and the flow velocity (m/sec). Is the flow velocity the average pipe velocity? Explain.

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Piczometer Pitot tube Figure P9.2.1