what is the probability that there will be no moderate earthquakes in a year near this location? In 10 years?

1. If the occurrences of earthquakes and high winds are unrelated, and if, at a particular location, the probability of a “high” wind occurring throughout any single minute is 10-5 and the probability of a “moderate” earthquake during any single minute is 10-8 : (a) Find the probability of the joint occurrence of the two events during any minute. Building codes do not require the engineer to design the building for the combined effects of these loads. Is this reasonable? (b) Find the probability of the occurrence of one or the other or both during any minute. For rare events, i.e., events with small probabilities of occurrence, the engineer frequently assumes: P(A”B) ~ P(A) + P(B). Give a comment. (c) If the events in successive minutes are mutually independent, what is the probability that there will be no moderate earthquakes in a year near this location? In 10 years?

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Explain why of length-of-bend to sheet thickness increases.

As noted in Fig. 7.16, the state of stress shifts from plane stress to plane strain as the ratio   of length-of-bend to sheet thickness increases. Explain why. This situation….

Describe the material properties that have an effect on the relative position of the curves shown in Fig. 7.19.

Describe the material properties that have an effect on the relative position of the curves   shown in Fig. 7.19. Observing curves (a) and (c) in Fig. 7.19 on p…..

Why do tubes have a tendency to buckle when bent?

Why do tubes have a tendency to buckle when bent? Experiment with a straight soda straw, and describe your observations. Recall that, in bending of any section, one-half of the….