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A cantilever beam built up from two channel shapes, each C 200 × 17.1, and of length L supports an inclined load P at its free end (see figure).
Determine the orientation of the neutral axis and calculate the maximum tensile stress σmax due to the load P. Data for the beam are as follows: L= 4.5 m, P = 500 N, and α = 30°.
A system consists of liquid nitrogen in equilibrium with nitrogen vapor. How many phases are present? The system undergoes a process during which all of the liquid is vaporized. Can the system be viewed as a pure substance during the process? Explain..
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An amount, P, must be invested not to allow withdrawals of $1,000 per year for the next 15 years and to permit $300 to be withdrawn starting at the end of year 6 and continuing over the remainder of the 15-year period as the $300 increases by 6% per ..
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