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The pressure exerted by electromagnetic radiation in thermal equilibrium (called black body radiation) is P = 1 K T4, 3 u where Ku = 7.56 × 10-16 J K-4 m-3.
(a) At what temperature is the radiation pressure equal to 10-8 Pa. (In the laboratory 10-8 Pa is a high vacuum.)
(b) Estimate the radiation pressure at the surface of the sun. (See Table 1.1.)
(c) Estimate the radiation pressure at center of the sun.
Determine the typical seasonal patterns for sales using the ratio-to-moving-average method. Project the sales for 2004, and then seasonally adjust each quarter.
The assembly time for a product is uniformly distributed between 6 to 10 minutes.
Two groups of students are asked to rank their preference for six types of soft drinks. The following table shows their rankings.
Sam Hill, Director of Media Research in Christchurch,
at year-end 2013 wallace landscapings total assets were 2.17 million and its accounts payable were 560000. sales
The time to complete a construction project is onrmally dsitributed with a mean of 60 weeks and a standar deviation of 4 weeks. What is the probability the project will be finished in 62 weeks or less?
suppose a company has a design maximum output of 100. its actual output is 80 and its efficiency is 50.calculate its
The sample size n, the sample means, and the sample standard deviations for the two groups are given
Risks and Odds in Everyday Life, James Burke claims that about 70 percent of all single men would welcome a woman taking the initiative in asking for a date. A random sample of 20 single men was asked if they would welcome a woman taking the initiati..
question on february 8 2002 the gallup organization released the results of a poll concerning american attitudes
Given this information, and assuming the data are from a normally distributed population, construct and interpret the 95% confidence interval for the population mean amperage these fuses will withstand.
An engineer was interested in comparing the variability of the power of a laser at current levels of 16 amps (X) and 20 amps (Y). To do so, random samples of 25 observations of power readings were obtained at each current level. The samples ..
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