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Select three different products commonly found in homes. State your opinions on
(a) what materials were used in each product,
(b) why those particular materials were chosen,
(c) how the products were manufactured, and
(d) why those particular processes were used.
Determine the force at the circular endcap and its location relative to the bottom of the pipe. If there is a hinge at the bottom, what external force would need to be applied to the top to prevent rotation
Your other assistant is measuring the propane (C3H8) concentrations, which are 75 microM at 200 m downstream and 52 microM at 1500 m downstream. What is the reaeration coefficient if it is assumed that no dilution occurred due to lateral flow?
What is the modulus of elasticity of this composite in the longitudinal direction?
The reheated steam is then expanded in the low-pressure turbine to 10 kPa. Determine the steam flow rate to the high pressure turbine and the power required to drive each of the pumps.
Repeat Problem 9.49, but assume a closed FWH instead of an open FWH. A single pump is used to pump the water leaving the condenser up to the boiler pressure of 3.0 MPa. Condensate from the FWH is drained through a trap to the condenser.
A condenser is maintained at 60?C by cooling it with atmospheric air coming in at 20?C and leaving at 35?C. The condenser must reject 25 MW from the water to the air. Find the flow rate of air and the second-law efficiency of the heat exchanger.
What are the inputs needed to determine stress a polymer with a fixed end on one side, and the other with a tension force of 50,000 lbs a year after the load is applied
An equal-tangent crest curve connects a +2% initial grade with a -1% final grade, and is designed for 55 mi/h. The station of the PVI is 233 + 40 with elevation 1203 ft.
The moment applied causes twisting of the solid circular rod and bends the simply supported beam. Determine the rotation where the moment T is applied. Take the beam to have height h, width b, and Young's modulus E. Take the rod to have radius R a..
For satisfactory operation, the static pressure at the pump inlet must not be lower than -6 m of water gage. Determine the smallest standard commercial pipe that will give the required performance.
A runway can serve all 868 or all other jets? Assume the minimum time separation in the approach area is 60 seconds for all 868 and 50 seconds for all other jets. All jets including 868 have a runway occupancy time of 60 seconds.
The compressor of a refrigerator compressed saturated R-134a vapor at 5 F to 200 pisa. How much work (ft-lbf/lbm) does this require when the process is isentropic
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