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A piston cylinder is filled with .85 kg of refrigerant-134a at -10 degrees Celsius. The piston moves freely, and has a mass of of 12 kg and a diameter of 25 cm. Heat is added to the closed system (the refrigerant) until the temperature rises to 15 degrees Celsius.
A) How far did the piston move (use interpolation)?
B) What is the change in enthalpy of refrigerant 134a?
The motion of a particle on the surface of a right circular cylinder is defined by the relations, R = A, theta = 2pi(t), and z=Bsin(2pi)(nt), where A is a constant. Determine the magnitudes of the velocity and acceleration of the particle at any t..
The water content in one of five standard Proctor test samples is 15.2%. The corresponding degree of saturation is 85%. Calculate the dry unit weight if Gs=2.67
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a railway wagon weighing 40 kn and moving with a speed of 8 kmh is stopped by a buffer of 4 springs whose allowable
Write a MATLAB program that loads the sensor_new.dat file. The sensor readings were actually taken every second over a period from 0 to 19 seconds. Create a time vector going from 0 to 19 in 1 second increments.
What is the design storage and water surface elevation at the peak outflow rate and estimate the long-term average reduction (EPA, 1986) in particulates under dynamic conditions.
A pump having the characteristics given in figure 14.9 ( N=2133.5 rpm, n=35.6 rps, D=37.1 cm) pumps water at 25 degree C from a reservoir at an elevation of 366 m to a reservoir at an elevation
A falling-head permeability test is being conducted on a saturated sample of clayey silt having hydraulic conductivity of 6.5 x 10-9 m/s. The diameter and the length of the sample are 100 mm and 150 mm
To what precision (how many decimal places) must you know the value of a decimal degree in order to reliably convert it to the nearest second (1/3600 of a degree) To what precision (how many decimal places) must you know the value of a radian
A 14in diameter pipe pile is driven 50ft into a dry loose sandwhose unit weight is 105 pcf. The angle of internal frictionis 33 degrees. Compute the safe axial downward loading
A spherical pressure vessel has an inner diameter of 2 meters and athickness of 10 mm. A strain gauge having a length of 20 mm is attached to it, and it isobserved to increase in length by 0.012mm when the vessel is pressurized.
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