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Repeat the above problem for the case where the heat is added and removed under conditions of constant length.
Heating a stretched rubber band increases its tension, making it tend to contract, and a contracting rubber band tends to cool off. You are invited to design an engine that does work by pulling rather than pushing. You will need a hot reservoir, a cold reservoir, and a rubber band with one end fixed and one attached to a movable piston. Suppose that the heat addition and removal are done isothermally (e.g., the system is immersed in reservoirs as appropriate). Sketch and label the four parts of the cycle for this engine, and also sketch and label the four parts on a F-L diagram, which is like a p-V diagram, except using tension (- F) and length (L). (Note that the work done is d W= - FdL, because the system is pulling, not pushing.)
If the actual proportion in the entire warehouse is 0.35, what is the probability that the sample proportion will deviate from the population proportion by more than 0.05?
Three fair coins are thrown (and throw are independent of each other). (i) Find the probability that exactly two are tails.
What standard deviation (within 0.001 inch) minimizes the annual cost of producing elevator rails? You do not need to try standard deviations in excess of 0.02 inch
Knowing that your friend Angella studies for her tests only 40 percent of the time, you place an even bet with a third party that Angella will not study.
a machine fills cans of soda which are labeled 12 ounces according to a normal distribution with mean 12.1 ounces and
Calculate the sample mean potential value for each diameter of logs in the sample. Discuss whether there is a way to determine how much sampling error exists for a given diameter log based on the sample. Can you determine whether the sampling error..
Sstandart deviation of 40 seconds. Find the probability that a randomly selected boy in secondary school can run the mile in less than 368 seconds.
Suppose that that download time is normally distributed with a standard deviation of 0.2 seconds. What is the probability that a download time is less than 1 second?
Abnormalities that might lead to cancer. Provide a descriptive statistic that could be used to estimate the number of women out of 1000 in this population.
Location The 2013 Profile of International Home Buying Activity reported the percentage of total foreign purchases of U.S. homes by country of origin.
Suppose a person offering hot-air balloon rides charges $50 for each ride of at least 1 hour, and $1.00 for every minute after 1 hour. What proportion of rides costs more than $100?
Your organisation has recently started advertising its services on the internet. The marketing manager has indicated that she wants to know how long it takes.
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