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In a typical floor support, a short timber post is capped with a steel channel to provide a larger bearing area for the joists. The joists are rough cut.
The steel base plate is provided to increase the bearing area on the concrete footing. The load transmitted from each floor joist is 5.0 k.
Find the following:
a. The minimum length of channel required to support the joists if the maximum allowable bearing stress perpendicular to the grain is 400 psi.
b. The minimum size of post required to support the load if the maximum stress allowed in compression parallel to the grain is 1,200 psi.
c. The size of base plate required if the allowable bearing on concrete is 450 psi.
d. The footing size if allowable soil fp = 2,000 psf.
how much must you deposit today in an account that pays a quoted annual interest rate of 13% with quarterly compounding of interest?
If an apartment is selected at random, what is the probability that it is not a 2 bedroom apartment on the 2nd floor?
An urn contains an infinite number of coins that are either two-headed or two-tailed. The proportion of each kind is the same.
a random and indepently chosen sample of four bags of marbles each labeled 20 pounds had weights of 20.5 19.8 20.8 and
a random sample of 70 needles was taken from a medical manufacturing facility and 24 were found to be defective.
A criminologist is interested in the effects of unemployment and policing on murder and has run the following multiple regression:
What percentage of the pins will be acceptable to the customer? In order to improve percentage accepted, the production manager and the engineers discussadjusting the population mean and standard deviation of the length of the pins.
Use this information to find the probability that an HRO officer selected from the group surveyed had problems with either employee absenteeism or employee turnover.
question a volunteer ambulance service handles zero to three service calls on any given day. the probability
the parallelogram linkage shown moves in the vertical plane with the uniform 8-kg bar ef attached to the plate at e by
Form a 95% confidence interval for the average number of latex gloves used per week by all health care workers with a latex allergy.
a. Construct a 97% confidence interval for the difference between the proportions of all orders placed at the two warehouses that are mailed within 72 hours. b. Interpret the results of the confidence interval.
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