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Question 16 Which of the following describes a ferromagnetic material? Strongly attracted to a magnetic field. Strongly repelled by a magnetic field Weakly attracted by a magnetic field Weakly repelled by a magnetic field

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A vector with magnitude 7 points in a direction 145 degrees counterclockwise from the positive x axis. Write the vector in component form. Vector = Give each value accurate to at least 1 decimal place

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Which statement about reseach conducted in social psychology is not true? Social psychologist may propose research questions based on specific theories they have about various phenomena. Social psychologists sometimes create complex research questions based on their own personal experiences and observations of the world. Real world events can sometimes inspire social psychologists' research questions. To save time, research questions are created after the research study has begun collecting data.

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Let f(x) = 2arctan(3x). Find the x-coordinates of all points where the slope of the tangent to the curve f(x) is 2.

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A _____ is composed of means based on samples rather than raw scores.

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Nantucket Company has two divisions that report on a decentralized basis. Their results for 2014 were as follows: Helmet Ball Sales $150,000 $300,000 Operating Income $ 15,000 $ 45,000 Average Assets $ 75,000 $150,000 Capital Employed $ 90,000 $200,000 Weighted average cost of capital 12% 12% Required: Assuming Nantucket has a 30% tax rate, compute the following amounts for each division (show all workings): a. Return on investment (ROI). b. Residual income if the desired rate of return is 20 percent. c. EVA. d. Turnover. e. Margin.

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4. The sum of all the equal periodic payments and the interest earned is called the ____ of the 29. Funding a Pension Dan wishes to have $350,000 in a pension fund 20 years from now. How much should he deposit each month into an account paying 9% compounded monthly to have $350,000 after 240 payments? 40. Time to Save a Million Dollars How many years will it take to save $1,000,000 if you place $1000 each month in an account that earns 6% compounded monthly?

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3.Activity Manual: In an aortic aneurysm, a bulge forms where the walls of the aorta are weakened. Blood flowing through the aorta (radius 1.00 cm) enters an aneurysm with a radius of 3.00 cm. The flow rate through the aorta is 120 cm³/s. The density of blood is 1060 kg/m³. Assume the blood flow is ideal and the patient is lying down so there is no change in height. a) Is the pressure inside the aneurysm higher or lower than the pressure in the healthy part of the aorta? b) What is the difference between the pressure inside the aneurysm and the pressure in the healthy part of the aorta?

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EE4091: Photonics - Final Exam Make up Duration: 60 minutes Solve all questions 1) A 0.5-µm plane light wave of intensity $I_o$ is incident on a barrier containing many slits of size 0.1 mm. The slits are 0.2 mm apart. Describe the interference pattern created on a screen 5 meters away? Give all details including a 1-D sketch of the intensity pattern showing the location of the first 5 dark spots. 2) A light color mix of 40% red, 20% green and 40% blue is to be used in a mall display. Discuss the specifications and operating conditions of the three LEDs used. Give all details. 3) Light passes through a glass slab with parallel faces. Show that if light is incident at Brewster's angle on the first (air-glass) interface, then there will also be no reflection at the second (glass-air) interface. Show all steps. 4) A He-Ne laser beam has an output optical power of 1 mW and beam diameter of 1 mm. Determine the electric field amplitude in the laser lightwave, assuming that the light makes a plane wave. Show all steps. 5) Explain how you would improve the speed of a Si pin photodiode. What effects will your answer have on responsivity? Give all details.

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1. For each of the following vectors, compute the norms. a = \begin{bmatrix} 1\\1\\1 \end{bmatrix} c = \begin{bmatrix} 1/3\\-2/3\\1/3 \end{bmatrix} e_3 = \begin{bmatrix} 0\\0\\1 \end{bmatrix} b = \begin{bmatrix} 3/5\\4/5 \end{bmatrix} d = \begin{bmatrix} \cos(\pi/4)\\\sin(\pi/4) \end{bmatrix} h = \begin{bmatrix} \cos(5\pi/3)\\\sin(5\pi/3) \end{bmatrix} 2. For each of the vectors in the set in problem 1, give the normalized vector.

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