4.68 The wind blows across a field with an approximate velocity profile as shown in Fig. P4.68. Use Eq. 4.16 with the parameter b equal to the velocity to determine the momentum flowrate across the vertical surface A-B, which is of unit depth into the paper. 10 ft 15 ft/s Figure P4.68 20 ft wildwied

Q.2A) A tall water tank discharges through a well-rounded orifice, as in Fig. below. If, at this instant, the force F required to hold the plate is 40 N, what is the depth h? Density of water is (998 kg/m³) d=4 cm All

A B AB is a section in a 24 centimeter constant diameter pipe. 20 degree C mercury enters the section at speed 8 meters/sec. Flow is steady- state. 39,375.96 Determine the net force on the mercury in section AB in Newtons. Hint: use the linear momentum equation.

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