A signal x [n] is periodic with period N 0 = 6. Some selected values of x [n] are x [0] = 3, x [?1] = 1, x [?4] = ?2, x [?8] = ?2, x [3] = 5, x [7] = ?1, x [10] = ?2 and x [?3] = 5. What is its average signal power?
What will be an ideal response?
Solution:
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Plug welds are used to make ____.
A. butt joints B. tee joints C. lap joints D. pipe joints
Which of the following statements is false?
A) The rational consumer maximizes satisfaction subject to a budget constraint. B) Regardless of the commodity, the farmer always receives 20 cents of the dollar spent in food. C) The Latin phrase ceteris paribus means everything else the same or holding all other factors constant. D) Agricultural economics is an applied social science.
Describe the "colonial nosegay."
What will be an ideal response?
PROBLEM 3.C3 Shaft AB consists of n homogeneous cylindrical elements, which can be solid or hollow. Both of its ends are fixed, and it is subjected to the loading shown. The length of element i is denoted by its outer diameter by its inner diameter by its modulus of rigidity by and the torque applied to its right end by the magnitude of this torque being assumed to be positive if is observed as counterclockwise from end B and negative otherwise. Note that if the element is solid and also that Write a computer program that can be used to determine the reactions at A and B, the maximum shearing stress in each element, and the angle of twist of each element. Use this program (a) to solve Prob. 3.55 and (b) to determine the maximum shearing stress in the shaft of Sample
Problem 3.7.
