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1. (a) Prove that no 2-temperature refrigerator operating between reservoirs at hotter and colder temperatures Th and Tc has a greater coefficient of performance than a Carnot refrigerator. Use diagrams of the type introduced in the chapter.
(b) Find the minimum amount of electrical energy needed to create 0.50 kg of ice from water at 0 °C in a household freezer that rejects heat to a room at 20 °C.
2. Show that a heat pump with a coefficient of performance COPh greater than a heat pump that operates on a Carnot cycle would violate Clausius' statement of the second law.
Flaws in a certain type of drapery material appear on the average of one in 150 square feet. If we assume the Poisson distribution, give the probability of at most one flaw in 225 square feet.
One-fourth of the residents of the Burning Ridge Estates leave their garage doors open when they are away from home. The local chief of police estimates that 5 percent of the garages with open doors will have something stolen
if x is a binomial random variable where n100 and p.1 find the probability that x is less than or equal to 12 using the
These 64 students will spend a combined total of more tahn $715.21? What is the probability that these 64 students will spend a combined total between $703.59 and $728.45?
A Hot Fudge Sundae has on average 12 ounces of ice cream. If I were to set up a hypothesis test to test the ability of a new employee making the hot fudge sundae with an average of 12 ounces of ice cream
andy always goes to work at 7 oclock. each day he either drives to work or takes the light rail to work. if andy drives
a national grocers magazine reports the typical shopper spends nine and half minutes in line waiting to check out. a
What has to be the case for us to discuss one variable "causing" another - In correlation and regression we are examining relationships between two or more variables
A year after graduation. Find the probability that 8 randomly selected graduates all find jobs in their chosen field within a year of graduating.
Determine the confidence level used for the given confidence interval.
how would you characterize the largest 5 of all concentration values. in other wods at what level of concentration cu
Determine the sample mean, sample standard deviation, and sample size
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