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Draw the system diagram for the Rankine cycle. Label all of the states. Draw the T-v diagram for the cycle. Label your states so they also agree with your system diagram.
If the surroundings are at 15 psia and 75 F, determine the entropy generated by this process , the exergy destroyed, and the second law efficiency. Will this process actually occur?
Determine the heat generation rate of the portable heater. What are the temperatures at the inner and outer surfaces of the laboratory chamber?
You graduated from college after 4 long years and studying finally paid off! Draw the cash flow diagram and show your work.
Determine the heat loss rate of this mixing chamber. If all the heat loss to the surrounding at 25 degree Celsius, determine the rate of total entropy generation during this mixing process.
Write the stream function and velocity potential as a function of the three source/sink strengths. Write the expressions for the velocity components in terms of the three source/sink strengths.
Compute, if possible, both the velocity potential and the stream function. Identify any stagnation points in this potential flow field. If it isn't a flow tell how you would identify them if it was.
If a stream function and a velocity potential exist, sketch both the streamlines the equipotential lines and the pressure field using the pressure at the origin to normalize.
The exhaust mass flow rate is constant at 21 lb m/s. Determine the value of the restraining force Fx. Assume the exhaust flow is essentially horizontal.
Suppose another stone is thrown horizontally from the same building. If it strikes the ground 67 m away.
Suppose a ski-jumper lands at a point 157 m down the incline of the track described in the example (with a horizontal take-off). What was her speed at take-off?
Determine an equation for the time at which the projectile strikes the building. (Use any variable or symbol stated above as necessary.)
A particle initially located at the origin has an acceleration of = 2.6 m/s2 and an initial velocity of i = 5.3 m/s. Find the velocity of the particle at t = 6.0 s.
A projectile is launched straight upward at +73.5 m/s from a height of 93.0 m, at the edge of a sheer cliff. Find the maximum height of the projectile above the point of launch.
A motorist travels at a constant speed of 34.0 m/s through a school zone, exceeding the posted speed limit. Find the distance required for the policeman to overtake the motorist.
You are traveling along an interstate highway at 32.0 m/s (about 72 mph) when a truck stops suddenly in front of you. What was your acceleration, assuming it was constant?
If the weights of the three children at points A, B, and C are 375 N, 260 N, and 400 N, respectively, determine the magnitude and the point of application of the resultant of the three weights.
A river has a steady speed of 0.461 m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. How much time is required in still water for the same length swim?
If the speedboat travels 58.4 km/h, in what direction should it head? Express the direction as a compass bearing with respect to due north.
A police car traveling at 101.7 km/h is traveling west, chasing a motorist traveling at 77.0 km/h. What is the velocity of the motorist relative to the police car?
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.20 m/s at an angle of 21.0° below the horizontal. Find the height from which the ball was th
Determine the mass of water supplied to the sprays to provide 10 m3/h of conditioned air. What is the heater power required?
Find the temperature to which the air is cooled and the thermal loading on both the cooler and heater. Assume that a fan before the cooler absorbs 0.5 kW.
Cooling water enters a cooling tower at a rate of 1000 kg/h and 70 degree C. Calculate the flow rate of the dry air in kg/h and the make-up water required per hour.
What percentage of the water flow rate must be supplied as make-up water to replace the water evaporated into the air stream?