In Figure 13.1, what is the maximum force in N that can be supported by the wire if the design stress is 95.5 MPa and allowable deformation is 1.3 mm? The wire is made from stainless steel.
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Follow the steps of the Systematic Approach of Section 14.4—that is, (1) identify the system, (2) determine whether the process is batch or rate, (3) construct a schematic diagram with inputs and outputs, (4) Label known material quantities or rates of flow and so on.
Three brine solutions, B1, B2, B3, are mixed. B1 is one-half of the total mixture. Brine B1 is 2.5 percent salt, B2 is 4.5 percent salt, and B3 is 5.5 percent salt. To this mixture is added 35 lbm of dry salt while 280 lbm of water is evaporated leaving 3 200 lbm of 5.1 percent brine. Determine the initial amounts of B1, B2, and B3.
Electrical drawings deal predominantly with circuits.
Answer the following statement true (T) or false (F)
Who said, “People prefer to believe what they prefer to be true”?
a. René Descartes b. Andreas Vesalius c. Nicolaus Copernicus d. Francis Bacon
What are the three most common ways to reduce pollutants in indoor air?
A) Source removal, ventilation, and filtration B) HEPA filters, UV lights, and ozone generators C) HEPA filters, electronic air cleaners, and UV lights D) Creating a negative building pressure, filtration, and ventilation