(a) With regard to the coincident site twist boundary on a {111} fcc metal plane shown in Fig. 6.25, show that using the Ranganathan relationships (Eqs. 6.21, 6.22 and 6.23), that a choice of x = 2 and y = 1 will also give this ?=7 boundary.
(b) To what angle of twist does x =2 and y = 1 correspond?
(c) Is the fact that x = 2 and y = 1 are able to produce an equivalent coincident site boundary to that in Fig. 6.25 related to the symmetry of the atomic arrangement on the {111} plane? Explain.
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A discrete variable X can take on integer values of 1 to 10. A sample of size 50 results in the following probability estimates:
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(a) Write out and graph the cumulative distribution.
(b) Calculate the following probabilities using the cumulative distribution: (1) X is between 6 and 10, and (2) X takes the value 4, 5, or 6.
(c) Use the cumulative distribution to show that P(X = 7 or 8) = 0.0. Even though this probability is zero, the statement about X is that it can take on integer values of 1 to 10. How do you explain the apparent contradiction in these two statements?
Inbred lines are not capable of producing genetic improvement.
Answer the following statement true (T) or false (F)
Red fire ants have been very beneficial to Texas agriculture
a. True b. False Indicate whether the statement is true or false
Name the three body sections of exoskeletons
What will be an ideal response?