Problem 6-Analysis of a nozzle flow ( The stators in a gas turbine are designed to increase the kinetic energy of the gas passing through them adiabatically. Air enters a set of these nozzles at 300 psia and 700°F with a velocity of 86 ft/s and exits at 250 psia and 645°F. The specific heat of air at the average temperature of 672.5°F is cp = 0.253 Btu/lbm-R. a. Create a schematic representation of the nozzle and draw the boundary of the system needed to answer the next questions. Include the mass and energy interactions across the boundary. Create a governing equation for this nozzle from the general energy balance equation and cross-out any terms that are likely to be irrelevant or have little contribution in the equation. C. Calculate the velocity at the exit of the nozzles (in ft/s) d. e. List the assumptions and approximations that were needed to solve this problem. Identify (sketch) the two states of the working fluid (entrance and exit) on both a P-v diagram and a T-v diagram. f. Convert the outflow velocity to mph and comment on the validity of the results from this problem.

The two gears in the picture below on the left are meshing together. The two gears in the picture on the right are stuck together and are on the same shaft. Which of these statements is true when the gears are turning? (There may be more than one correct answer). A. The two meshing gears have the same |?| B. The two gears on the same shaft have the same |?| C. The two meshing gears turn through the same magnitude of arc-length in the same time D. The two gears on the same shaft turn through the same magnitude of arc-length in the same time

42 in 64 [in]- 50 in D 59 in B این دو سال است اند اما او شده از این سامانه 63 in -10 in 21 in ( Given: The plate( The shaded rectangular volume) has weighs 240 lbf. It is. suspended bycable CD, Which D is wall anchor. So, Find the magnitude of force in the cable CD such the system is in static equilibrium??. Show all works.

Determine the horizontal and vertical stroke of a slider D and F when crank AB rotates 30degrees sideways. AB=20, BC=25, CD=30, BD=50, CF=45cm. Draw in appropriate scale.