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The energy flux associated with solar radiation incident on the outer surface of the earth's atmosphere has been accurately measured and is known to be 1353 W/m2. The diameters of the sun and earth are 1.39 × 109 and 1.29 × 107 m, respectively, and the distance between the sun and the earth is 1.5 × 1011 m.
(a) What is the emissive power of the sun?
(b) Approximating the sun's surface as black, what is its temperature?
(c) At what wavelength is the spectral emissive power of the sun a maximum?
(d) Assuming the earth's surface to be black and the sun to be the only source of energy for the earth, estimate the earth's surface temperature.
1. you have obtained a sub-sample of 1744 individuals from the current population survey cps and are interested in the
Analysis of how hypothesis testing and the use of confidence intervals are the same and analyze how these are different.
Define the variable - the weight in pounds - it is a dependent variable. Find the mean, median, mode, variance, and standard deviation for your data.
the weinberg electronics corporation manufactures four highly technical products that its supplies to aerospace firms
two airplanes are flying in the same direction in adjacent parallel corridors. at time t 0 the first airplane is 10 km
The number of choco chips in an 18 ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1256 and a standard deviation of 129 chips, What is the probability that a randomly selected bag contains fewer than 1000 c..
in a data communication system several messages that arrive at a node are bundled into a packet before they are
Perform 5 t-tests on the data comparing C1 to C2 on each of the 5 questions. Indicate which of the 5 variables has a difference between C1 and C2.
what does a negative correlation statistic value mean?a for most individuals both variables had values less than zerob
A distribution center receives shipments of a product from three different factories in the quantity of 50, 35 and 20.
The researchers gave each subject a battery of nine separate neurological and psychological examinations designed to assess their mental capabilities.
State the appropriate hypotheses. Obtain a test statistic and p-value. Interpret the results at ? = .01. Is normality assured? Is the difference large enough to be important?
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