Water flows through a horizontal pipe. The pipe consists of two sections of diameters 0.5 m and 0.25 m with a smooth reducing section. The velocity at the upstream section is 2 m/s and velocity at the downstream section is 8 m/s. The pressure difference between the two pipe sections is measured by a mercury manometer. Determine the differential height of mercury between the two pipe sections. Neglect frictional effects.

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false