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At 100 lbf/in2, saturated vapor H2O flows in a pipe. A valve is opened to vent a small amount to the atmosphere. Assuming no changes in kinetic energy and no heat transfer, what is the temperature as it leaves the valve? A line with ammonia that flows at 180 psi, 140oF is attached by a valve to a tank. The tank initially has ammonia is stored in it at 20 psi, 80oF in a 20-ft3 tank The valve is opened, and mass flows in until the tank is half full of liquid, by volume at 80oF. What is the heat transferred from the tank during this process. An evacuated 1-ft3 tank is connected by a valve to an air supply line flowing air at 120 psi and70oF. A valve is opened allowing air to flow into the tank until the pressure reaches 90 psi. How much mass flowed into the tank and what is its final temperature? Assume the process is adiabatic.
the required cross-sectional area of cables in a cable-stayed bridge can be estimated by keeping cable stress just at
q1. 1.5 kg of oxygen n2 and 0.15 kg of helium he2 are separated by a partition in a vessel.nbsp the nitrogen is at 5
determine the resultant force r made by the force p having a magnitude ofnbsp50n and making an angle theta 35 degrees
a 0.5-in.-diameter steel e 30000 ksi bolt 1 is placed in a copper tube 2 as shown in fig. p5.47. the copper e 16000
Discussion of various cycles attempted to meet the goal as well as the positive and negative aspects of your design.
Consider a NACA 0009 airfoil that has a plain flap whose length is 0.2c and which is deflected 25. a. Calculate cl and cmc/4 When the geometric angle of attack is 4 degrees, what is the section lift coefficient? Where is the center of pressure?
a 300kg compressor is placed at the end of a cantilever beam of length 1.8 m made of a material with an elastic modulus
answer the following questions1. name six types of springs.2. name three types of gears.3. state hookes law.4. give the
a piston-cylinder device contains 1 kg of h2o. the water is at 800oc and a pressure of 20 mpa. heat transfer occurs
A pump station has been designed to lift water out of a 6 metre deep pit (vented to atmosphere) via a centrifigual pump mounted at ground level. Calculate the Net Positive Suction Head (NPSH) for the system ?
The motion of a particle in defined by the relation x = t3 - 15 t2 - 20, where ‘x' is expressed in metres and ‘t' in seconds. Determine the acceleration of the particle at t = 3 seconds.
What volumetric flow rate of fuel gas is required if there are no heat losses to the surroundings?
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