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1. A heavily insulated cylinder/piston contains ammonia at 1200 kPa, 60?C. The piston is moved, expanding the ammonia in a reversible process until the temperature is -20?C. During the process, 200 kJ of work is given out by the ammonia. What was the initial volume of the cylinder?
2. Water at 1000 kPa, 250?C is brought to saturated vapor in a piston/cylinder with an isothermal process. Find the specific work and heat transfer. Estimate the specific work from the area in the P-v diagram and compare it to the correct value.
Provide the function prototype for the following function if it is to be declared as a friend function of class Planet. Include the class declaration and the proper access attribute, but you are not required to add any additional class data or fun..
A vehicle pulls out onto a single lane highway that has a flow rate of 280 veh/h (poisson distributed). The driver of the vehicle does not look for oncoming traffic
An adiabatic piston-cylinder device equipped with a spring maintains the pressure inside at at 300kPa when the volume is 0, and 3000kPa when the volume is 5 m3. The device is connected to a steam line maintained at 1500kPa and 200 C
A quality of water within a piston-cylinder assembly executes a Carnot power cycle. During isothermal expansion, the water is heated from saturated liquid at 50 bar until it is a saturated vapor.
The 70-m microwave transmission tower is steadied by three guy cables as shown. Cable AB carries a tension of 12 kN. Express the corresponding force on point B as a vector
Both streams have a ?nal speed V = 18 ft/s. Disregarding gravitational e?ects, determine the x- and z-components of the force required to hold the splitter plate in place against the water force.
You are driving a car your metered fuel flow is 5.97x10^5 csf if at the speed you are driving you are getting 40mpg what is your speed in mph and ft/s need formulas.
determine the number of bricks and cubic feet of mortar required for 100 square feet of wall. the ties are to be spaced 16 inches on center vertically and 24 inches on center horizontally
A Kennedy half dollar has a mass of 1.150 X 10-2 Kg. The coins is a mixture of silver and cooper, and in water weights 0.1011 N. What is the mass of the silver
Rock masses that donot have the desired properties for a givencivil engineeering application are improved. The method of choicedepends on the purpose for which the rock mass is intended. amongthe common methods for increasing the strength of fissured..
The incremental cash flow between alternatives Z1 and Z2 (Z2 has the higher initial cost). Use an AW-based rate of return equation to determine the incremental rate of return and which alternative should be selected
Write a MATLAB code that calculates the weight (forces due to gravity) in lbf on each planet of our solar system and earth's moon for probes/rovers which have a mass between 100 lbm and 300 lbm. Use increments of 20 lbm.
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