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A 10 ft3 vessel contains steam at 200 psi and 500°F. A valve on top of the vessel is opened and steam is expelled to the surroundings until the pressure reaches 60 psi, at which time the valve is closed and the temperature inside is measured to be 350°F. Determine the net change in entropy for this process. Assume the surroundings to be at 500°F. Show all work.
a helical spring of stiffness k is cut into two halves and a mass m is connected to the twonbsphalves as shown below
Centrifugal Clutch Question, In a centrifugal clutch there are eight shoes, each of mass 0.3 kg and the centre of gravity of each shoe is at 50 mm radius when it is just touching the drum of diameter 200 mm.
Assuming saturated properties out of the evaporator and condenser
a particle moves along a circular path of radius 300 . if its angular velocity is 2t where is in seconds determine the
a piston-cylinder device contains 0.15kg of air initially at 2mpa and 350oc. the air is first expanded isothermally to
after pumping stops and a new equilibrium is reached the tire pressure is 600 kp a and the air temperature in the tire
a weight attached to a spring of stiffness 525nm has a viscous damping device. when the weight is displaced and
a carnot power cycle operates on 1.5 kg of air between the limits of 400 k and 250 k completing one cycle each second.
Determine a) the volume of the tank,b)the final temperature and pressure, and c) the internal energychange of the water.
saturated r-134a vapor at 100of is condensed at constant pressure to a saturated liquid in a closed piston-cylinder
At what location s will the combined moment of the weights of the man and platform about point B be zero?
write a reflective assessment of how you rate yourself against these competencies and Describe the main learning outcomes that this course and the EWB project have generated for you over the semester. Have any of these learning outcomes been a ..
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