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1. A constant-pressure piston/cylinder contains 2 kg of water at 5 MPa and 100?C. Heat is added from a reservoir at 600?C to the water until it reaches 600?C. Find the total irreversibility in the process.
2. A constant "flow" of steel parts at 2 kg/s at 20?C goes into a furnace, where the parts are heat treated to 900?C by a source at an average of 1250 K. Find the reversible work and the irreversibility in this process.
The grains of wood in the board make an angle of 20° with the horizontal as shown. Using Mohr's circle, determine the normal and shear stresses that act perpendicular and parallel to the grains if the board is subjected to an axial load of 250 N.
A 4-m- long, 6-cm-diameter cylinder placed normal to the flow is used to measure the velocity of an air stream. If a force of 50N is measured. What is the air velocity in m/s?
A natural channel that is clean and irregular(n= 0.040) has a bottom width of 15 ft m, side slopes of 6:1 (H:V) and a bottom slope of 0.0002. Using Manning's equation, determine the normal depth in the channel for a discharge of 720 cfs.
Why were these chosen for their particular situations? Sketch a detail of each partition.
The average rate of water consumption from this tank is 6.25 kL per day, every day. The farmer refills the tank (overnight) every 14 days, using a pump that takes water from a nearby river. The top of the tank is 53m (vertically) above the level o..
The exterior and interior walls are of concrete block. The roof is constructed of bar joists covered with a steel roof deck, rigid insulation, and built-up roofing.
What are the different dimensionless groups that describe a golf ball. A golf ball has two velocities, a spin velocity and a forward velocity.
a tape is calibrated and found to measure 100.04ft between the 0- and 100-ft marks. what measurements should be laid out to establish a horizontal distance of 682.25ft?
Using the data from Problem 6.17, compute the coordinates of stations C, D, E, and A. Assume that the coordinates of station B are 1,000.000 m N and 1,000.000 m E.
WHat volume of sludge must they dispose of each year if their sand drying beds yield a solids concentration of 35%
A steel scuba tank is 24 in. long and has an external diameter of 7.25 in. and an internal diameter of 6.7 5in. Say the tank is to carry a pressure of 3000psi . Determine the hoop stress in the tank wall. Determine the axial stress in the tank wall.
What will be the structural weight per meter for IRC class 70r bridge
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