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The composition of moist air is given on a molar basis to be 78 percent N2, 20 percent O2, and 2 percent water vapor. Determine the mass fractions of the constituents of air.
Assume that gasoline is burned with 99% efficiency in a car engine, with 1% remaining unburned in the exhaust gases as VOCs. If the engine exhausts 16 kg of gases (MW = 30) for each kg of gasoline (MW = 100)
A pressure quantity survey is being undertaken in an access decline used as an intake airway to an underground mine. The survey uses both traverse barometer and trailing hose methods.
You are designing a new thermometer using Galinstan, an alloy of gallium, indium, and tin that is a liquid at normal living temperatures. The coefficcient of thermal expansion is 190*10^-6 (1/kelvin).
Write the following iterated integral as a double integral with aregion R, and use the change of variables to compute the integral:∫x=2x=0∫y=√(2x-x²)y=0√(x²+y²) dy dx
question 1 a what are minerals? sketch different types of mineral crystal forms and list different types of rock
A civil engineering student contends that 60 mph is safe in a van because of the higher driver's eye height. If all other design inputs are standard, what must the driver's eye height in the van be for the student's claim to be valid
Assume that there were 1,100,000 vehicles making a 28.5-mi round trip per day, the average vehicle emission rate for VOCs is 1.3 g/VM , and the molecular weight of the VOC emissions from the mobile sources can still be represented by that of metha..
Write Darcy's equation in 2-D. There are three piezometers in an unconfined sand aquifer as shown below. The head measurements at A = 104.56 ft, B = 104.53 ft, C = 103.42 ft. The rate of recharge here is estimated to be 1.25 ft/yr.
Determine the service flow rate with a level of service B for asection of 4-lane freeway (2 lanes in each direction) with 10-ftlanes and obstructions 4 feet from the traveled pavement on oneside of the roadway. The section has a 5% grade 0.95 miles l..
A soil has a total density of 1.80 Mg/m3. When fully dry, the soil has a density of 1.59 Mg/m3. The specific gravity of the solids is 2.57. Find the following soil parameters: a) Dry unit weight of the sample
A rectangle commercial building must be laid out 200.00 ft wide and 300.00 ft long. if the steel tape used is 100.02 ft long under standard conditions, what distances would be laid out
Write a formula for the number of bridges that minimizes the sum of the construction and detour costs. (This is not necessarily the solution that society would choose based on the political process, but it should be a rough approximation.)
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