Determine the mass of methane gas stored
Determine the mass of methane gas stored in a 2 m3 tank at ?30°C, 3 MPa. Estimate the percent error in the mass determination if the ideal gas model is used.
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An engine operates on the air standard diesel cycle with inlet air conditions of 77 F and 14.5 psia. The compression ratio is 16, and the heat added is 700 Btu/lbm. Determine the max temp and pressure and the thermal efficiency for the engine.
In the formula for a variance, what is the sum if we dont square the (x-u) values? Hint: there is a special name for this sum.
An airplane is flying in a horizontal circle at a speed of 122 m/s. The 80.0 kg pilot does not want his centripetal acceleration to exceed 6.00 times free-fall acceleration.
Use a 0.05 significance level test the claim taht the three cateogries of blood lead level have hte same mean full IQ score. Does it appear that the exposure to lead has an effect on full IQ scores?
A 1.60*10^3 kg car rounds a circular turn of radius 22.0 m. If the road is flat and the coefficient of static friction between the tires and the road is 0.7, how fast can the car go without skidding?
Saturated water vapor at 200 kPa is in a constant pressure piston cylinder. At this state the piston is 0.1 m from the cylinder bottom. How much is this distance and the temperature if the water is cooled to occupy half the original volume?
A random sample of 625 SAT scores has a mean of 1500. Assume that SAT scores have a population standard deviation of 250. Construct a 95% confidence interval estimate of the mean SAT scores. Show all work.
You want to test the effects of water aerobics on resting heart rate. You decide to test two different levels of exercise (water aerobics for 30 minutes twice a week and water aerobics for 60 minutes once per week.) You randomly find a group of 60
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The risk factors for morbidity, mortality, disability, and other health issues can be determined through which of the following?
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How do you plan to balance the demands of a rigorous nurse practitioner program with other personal or professional commitments?
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Nurses working at a large children's hospital care for children who present to the emergency department (ED) with signs and symptoms of asthma.