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A pump is designed to move water and deliver to a vertical distance of 80m, what energy per kg of water must be supplied by the pump in this process? Assume g=9.8 m/s2. A spring deflected from its rest position by 3 inches, if the modulus of the spring is 150 Ibf/in, what is the work done in stretching the spring? A system of piston-cylinder contains a gas which expands by the relationship PV=C. If p1=600 psi, v1=1.8 in3, and v2=14.8 in3, calculate the final pressure and the work done. If a process follows the law 0f PV1.5=19 where P is in KPa and V is in m3. Find the work done if volume is changed from 1.8 to 2.9 m3. A round pipe, carrying water has a restriction in it where the diameter at the restriction is one half of the normal diameter. If water is flowing through the pipe with a velocity of 3 m/s, what would be the water velocity at the restriction assuming Water density= 1000 kg/m3.
What is the difference between common cause variation and special cause variation?
The J.O. supplies company buys calculators the probability of a defective calculator is 10%. If 100 calculators are selected at random, what is the expected number of defective?
a fair coin is tossed 500 times. find the probability of obtaining more than 300 heads.a.0b.
q1 a basketball coach claims that by taking a special vitamin a weight lifter can increase his strength. eight
Assume that the distribution of heights of adults American normally distributed, with mean 69 inches and standard deviation 2.8 inches.
Build a predictive model for number of calories using fat grams. If a pizza has 15 grams of fat, how many calories should it have, using your model?
She randomly samples 67 CFOs and finds that 40 of them get their money news from newspapers. Does the test show enough evidence to reject the findings of Robert Half International? Use a = .05.
Assume the least squares equation is Y' = 10 + 20X. What does the value of 20 indicate?
a drug tester claims that a drug cures a rare skin disease 77 of the time. the claim is checked by testing the drug on
Assume that two samples are independent simple random samples selected from normally distributed populations. Use a 0.05 significance level to test the claim that male and female biology students speak the same mean number of words in a day.
a teacher is interested in comparing the effects of three different types of rehearsal methods rote rehearsal imagery
There are 20 qualified applicants for 5 trainee positions in a fast-food management program. How many different groups of trainees can be selected?
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