A bottle of a certain type of salad dress- ing can be considered to be a mixture of olive oil and vinegar. The oil has a density of 0.92 g/cm3 and the vinegar has a density of 1.01 g/cm3. If an unopened and unshaken bottle of dressing contains 3 in. of oil on top of 5 in. of vinegar, estimate the pressure acting on the bot- tom surface of the bottle. What is the pressure acting on the side of the bottle at the line be- tween the oil and the vinegar

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.