you must highlight your main assumptions, highlight the given data and unknowns, draw a sketch, present your equations in full form, and specify the units in every step. A brief discussion of your findings is encouraged.

1. A horizontal pipe has an abrupt expansion from D1 =8 cm to D2 =16 cm. The water velocity in the smaller section is 10 m/s and the flow is turbulent. The pressure in the smaller section is ! = 300 kPa. Taking the kinetic energy correction factor to be 1.06 at both the inlet and the outlet, determine the downstream pressure " , and estimate the error that would have occurred if Bernoullis equation had been used.