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mohamed gray

mohamed g.

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To obtain increased creep resistance above half of homologous temperature, the stacking fault energy of a FCC metal and its grain size should be respectively

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Solve the factored equation cot² (x) = 3 (Express your answer in radians exactly, using symbolic notation and fractions where needed. Give your answer in terms of a value in the full period $[-\frac{\pi}{2}, \frac{\pi}{2}]$ and k where k is any integer. Separate multiple sets of answers by commas if appropriate.) x =

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Question 27 Which of the following is not one of the core elements of the social causation theory A Persons of lower economic status are more likely to be exposed to environmental health risks. B Persons of lower economic status are more likely to have hazardous occupations. C Persons of lower economic status are more likely to live in poorer-quality housing. D Persons of lower economic status are more likely to have health insurance coverage.

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Let u be a differentiable function of x, in exercise 123, the following result $$\frac{d}{dx}[|u|] = u'\frac{u}{|u|}, u \neq 0.$$ Use this result to find the derivative of the function. $$h(x) = |8x|cos(5x)$$ $$h'(x) = \boxed{8cos(5x)}$$

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Question 5 (10 points): A cylindrical, movable pulley of mass, M = 12.0 kg and radius, R = 0.35 m is suspended as shown. You pull vertically upward with a force of magnitude F = 144 N, at one end of a rope of negligible mass that wraps around the pulley. The other end of the rope is attached to a fixed support above the pulley. The rope does not slip on the pulley. What is the magnitude of the acceleration, a, of the pulley? The magnitude of acceleration due to gravity is 10 (m)/(s^2). Select the closest answer: 1.33 (m)/(s^2), 9.33 (m)/(s^2), 28.00 (m)/(s^2), 2.00 (m)/(s^2), 12.00 (m)/(s^2).

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Question 24 Not yet answered Marked out of 1.50 Flag question Given the following data: n = 5, $\sum x$ = 20, $\sum y$ = 15, $\sum x^2$ = 200, $\sum y^2$ = 100 and the coefficient of determination equals (0.74), then ($\sum xy$) equals: (Type a number without the decimal places) Answer:

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Which of the following will cause a decrease in Savings in the credit market? Increase in income. ?Decrease in income. Increase in the cost of capital. Increase in return on investment. ?Decrease in return on investment. ? Decrease in the cost of capital.

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4 An angle bracket is subjected to the system of forces and couple as shown. Replace the system by a single force, and determine the point of intersection of this single force with a) Line AB b) Line BC C 120 N 100 50 N.m 120 N 500 N B 36.87° 100 150 100 N All dimensions in "mm"

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Q1. (5 marks) a) Define and discuss the meaning of resonance frequency. Show you solutions by way of circuits and formulas. b) Draw and explain how to calculate a phase angle in RC circuits using Wave Diagram and Lissajous pattern. (2.5) (2.5) Q2. (5 marks) a) Name the four major groups of controls on the oscilloscope and explain (2) briefly in your own way the purpose of each control. b) Determine the rms value of the given waveform below, assuming the oscilloscope scale is set to 1.5V/ div. (1)

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Suppose the economy is entering a recession. Which of the following fiscal policies might Congress use to bring output up to its potential? Group of answer choices A decrease in both taxes and government spending A reduction in taxes An decrease in interest rates An decrease in government spending An decrease in the deficit

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