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An inverted test tube partially filled with air floats in a plastic water-filled soft drink bottle as shown in Fig. P11.29. The amount of air in the tube has been adjusted so that it just floats. The bottle cap is securely fastened. A slight squeezing of the plastic bottle will cause the test tube to sink to the bottom of the bottle. Explain this phenomenon.
list the order in which the components would be assembled. Is the system glazed from inside the building or outside? How can you tell?
In the accompanying diagram (which represents the market for chocolate candy bars), the initial equilibrium is at the intersection of S1 and D1. a. Circle the new equilibrium if there is an increase in cocoa prices.
An 8-in-diameter pipeline (f=0.028) 500 ft long discharges a 3-in-diameter water jet into the atmosphere at a point that is 250 ft below the water surface at intake.
A piston-cylinder device contains 0.2kg of water initially at 800 kPa and 0.06m^3. Now 200 kJ of heat is transferred to the water while its pressure is held constant. Determine the final temperature of the water.
At a temperature of 60 F, a .04 in gap exists between the ends of the two bars. Bar 1 is an aluminum alloy [E=10,000ksi, v=.32, alpha=12.5x10^-6/F] bar with a width of 3 in and a thickness of .75 in.
For unidirectional carbon/epoxy tape at a 60% fiber volume fraction, calculate E11 and E22. Given Ef= 211 GPa and Em =10 GPa. Calculate the fiber weight fraction. Given pf=1.95 g/cm3 and pm =1.3 g/cm3.
You have been asked to prepare a salt solution using 18.5 grams of NaCl and 6 gallons of water, What will the weight percent salt be in the resulting solution? 1 gallon = 3.78 liters
A 1 m diameter mass, M is connected to a 2 m wide rectangular gate. The gar is to open when the water level ,h, drops below 2.5 m. Determine the required value for M.
Establish a grass cover over a 10ha landfill. The root zone of the grass is 40cm deep. Increase the volumetric water content of root zone from 12% to 24%. How many cubic meters of water are needed?
The Metrodome's inflatable roof covers 10.0 acres and its interior volume is 60.0x10^3 cubic feet. During construction, 40.0x10^3 cubic yards of concrete, 11.9x10^3 tons of reinforcing steel, and 5.00x10^2 tons of structural steel were utilized.
For turbulent flow in a circular pipe find r/r0 at the radial distance from the centerline where the mean velocity occurs
Enlist the engineering benefits of using concrete for structures.
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