Water at a gauge pressure of 3.8 atm at street level flows into an office building at a speed of 0.55 m/s through a pipe 4.5 cm in diameter. The pipe tapers down to 2.75 cm in diameter by the top floor, 18 m above, where the faucet has been left open. Calculate the gauge pressure at the top floor (you will need to use your answer from part a). Give your answer in Pa to two decimal places. Do not type the units in the box, just the numerical value.

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.

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.