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Consider a steady flow cycle consisting of a pump, boiler, turbine, and condenser with water as the working fluid. The maximum and minimum temperatures in the cycle are 800 C and 60 C. The quality of the water is 0.891 at the beginning of the heat rejection process (entrance of the condenser) and 0.1 at the exit of the condenser. At the entrance to the boiler, the water is a saturated liquid at 350 C. Assume heat is added and removed isobarically.
Determine:
a) the coefficient of performance for this power cycle,
b) the pressure at the turbine inlet, and
c) the net work per unit mass output.
a scientist attempts to perform a difficult experiment. she is successful in about 80 of her attempts. she attempts the
Three companies are attempting to sell you a pollution reduction additive to your chemical waste. Given limited resources, which prevents you from developing the additive yourself, you get each company to give you a sample to the product.
Provide a 95% confidence interval for the population proportion of college students who work to pay for tuition and living expenses.
A shop manual gives 6.5 hours as the average time required to perform a 30,000 mile major maintenance service on a Porsche 911. Last month a mechanic performed 11 such services, and his required times were as follows.
at a track and field tournament freds long jumps vary evenly from 6.5 to 7.2 meters. let x be the length of freds long
Critically discuss the lower control limit for a proportion defective if the average daily production is 5000 units and the average fraction defective is .02?
question in a phone central we observe every minute if certain phone line is or is not occupied. in this way it has
Select the variable team salary and find the mean, median, and the standard deviation
What fraction of the calls last between 4.2 and 5 minutes?
An analysis of 1,000 cellular phone calls made from company phones at the offices of Kant, Taekitini, Moore, LLC reveals that the length of these calls is normally distributed, with m = 240 seconds and s = 40 seconds.
Determine expected cell counts if null hypothesis is true and show them in a two-way table. Determine the chi-square() statistic?
Using the Poisson approximation, what is the probability that three or fewer students will drop out of a random group of 200 entering students?
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