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A constant-volume tank contains 10 lbm of ammonia initially at 30 lbf/in^2 and 80(deg)F (539.67(deg)R). The ammonia is then cooled until its pressure drops to 10 lbf/in^2. Determine its entropy change from the initial state to the final state.
Using the data shown in Figures 6.14 (at 25oC) and 6.21, combine both curves onto one plot, being careful to correctly plot the modulus, yield strength, tensile (ultimate) strength, and ductility. Discuss how the modulus, yield strength, and ductilit..
the inner and outer surfaces of a 0.5 cm thick x 2.0 m x 2.0 m window glass in winter are 12degc and 4degc
A large plastic casting with thermal diffusivity 6.0*10-7 m2/s is removed from its mold at a uniform temperature of 150oC. The casting is then exposed to a high-velocity air stream such that the surface experiences a sudden change in temperature to 2..
water at standard atmospheric pressure and temperature fills a sealed rigid container. if the temperature of the water
Determine the reliability of a system having a capacity that is lognormal with a median of 100 and s = 0.6 subject to a load that is lognormal with a median of 20 and s = 0.8.
a construction crew lifts about 560 lb of material serveral times during the day from a flatbed truck to a 32 foot
Consider just the vertical (y) response of the system when the beam is being stretched. Show that the spring constant, ka, is approximately 70.6 mN/m. What is the steady state amplitude of the vertical response? See Figure A below for an engine..
The rack structure will be built 2 ft above floor level, and the clearance between the rack structure and the ceiling of the building must be at least 18 in. Determine the dimensions (height, length, and width) of the rack structure.
an ideal brayton gas refrigeration cycle uses air. the air is at 5 psi and -10f when it enters the compressor. the
energy in the home personal energy use and home energy efficiency. nbspestimate your personal annual energy usage for
You are throwing a dinner party and decide to prepare instant Chinese noodles (chicken flavor) for all your guests. From the cooking instruction on the back of the package, you determine that you will need to bring 44 cups of water to a boil for your..
Both cars undergo constant acceleration. Determine the time when the two cars pass each other on the highway.
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