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Use the van der Waals equation to calculate pressure p and compression factor z. Are attractive or repulsive forces between Ar atoms dominating under these conditions?
The vessel is heated until the water pressure reaches 8 Mpa. Determine the following properties of water at the final state: temperature, enthalpy, internal energy.
Draw the triangles of velocities for inlet and outlet and find (i) the angles of vane tips (ii) the work done per Newton of flowing water efficiency.
Consider the pumps and turbines to operate adiabatically and to all have isentropic efficiencies of 85%. The net power output of the cycle is 1 x 109 Btu/hr. Calculate the mass flow rate of steam th
What is the gage pressure at the bottom of the tanks? in kPa. What is the absolute pressure at the bottom of the taanks assuming standard atmospheric conditions? in kPa.
he mercury manometer shown here is used to measure this pressure decrease between points A and B at the pipe wall. Answer the questions below for h1 = 19.4 cm and h2 = 3.39 cm. What is the orifice p
A machine is found to vibrate with simple harmonic motion at a frequency of 20Hz and an amplitude of acceleration of 0.5 g. Determine the displacement and velocity of the machine. Use the value of
On the basis of equal cost per unit production, what monthly salary is justfied for B if the foreman gets$3,800 per month and A gets $3,000 per month.
Develop a cost and revenue structure for designing and constructing, operating (occupying) for 10 years, and the selling the home at the end of the 10th year.
Estimate the cost of a 150ft square shell and tube heat exchanger in 2010 when the index value is 1,029 and the appropriate cost-capacity factor is 0.6.
A cylindrical tank of radius R and depth H is filled with water. The tank is open to atmosphere. Derive an expression for the total force acting on the bottom and on the sides of the tank.
Calculate (a) the velocity at the instant the fuel burned out; (b) the maximum altitude reached by the rocket; and (c) the velocity of the rocket on striking the earth. (d) How long was the rocke
The camera speed was 20 frames per second. plot the displacement, velocity, and acceleration curves. What was the maximum acceleration of the point?
It is then reheated to 700°F and expands to 2.225 psi at the outlet of the second low pressure turbine. Calculate the thermal efficiency of the cycle.
If the original material from which the wire is made is a rod 25mm in diameter, calculate the longitudinal engineering and true strains that the wire has undergone during processing.
Hydrogen gas is contained in a vertical piston-cylinder device at 14.7 psia and 15 ft3. What is the total work done (Btu) during the expansion process?
A tank contains 0.9 m^3 of helium at 200 kPa and 20 C. Estimate the total mass of this gas in, kg. How much heat transfer, in MJ, is required to expand this gas at constant temperature to a new volume
A velocity field (in Cartesian coordinates) is given by u=V cos (theta), v=V sin (theta), and w=0, where V and (theta) are constants.
What is the force acting on the penny in this case? Assume that the temperature of the water is 10°C and the diameter of the penny is 19.05 mm.
If T and P are to remain the same, is there any way the compositions of the phases of the total content of the vessel can be changed (by adding or removing material) without affecting the compositio
A hot air ballon is traveling upward at a velocity of 10.94 ft/s and at a horizontal velocity of 18.23 ft/s. If sand bag is dropped from the balloon from an altitute of 164 ft, at what speed does t
Roast can be considered as a spherical shape and it is consider to be cooked when the center temperature reaches 200°F. Estimate the cooking time.
Hydrogen gas is contained in a vertical piston-cylinder device at 14.7 psia and 15 ft3. What fraction of the above work (Btu) is done against the spring?
A piston-cylinder device initially contains 0.6 m3 of water vapor at 250 kPa. Determine the total amount of heat transfer (kJ) during the process.
The pipe assembly is secured on the wall by the two brackets. If the weight of the flower pot is 50 lb. Determine magnitude of the moment produced by the flowerpot about the OA axis (MOA =132 lb-ft).