Numerade

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Light of varying wavelength hits the surface of a metal. Match each wavelength of light with the observed result. 655 nm 531 nm 487 nm No photoelectrons are ejected. Photoelectrons with a kinetic energy of 5.8 kJ/mol are ejected. Photoelectrons with a kinetic energy of 26 kJ/mol are ejected. Answer Bank

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25. The value of the expression $ \frac{\left(2^{2}\right)^{2} \times\left(3^{2}\right)^{3}}{3^{3} \times\left(2^{3}\right)(18)} $ is: A. 3 13.2 C. $ 3^{-1} $ D $ 2 \cdot 1 $

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Which atomic orbitals overlap to form the carbon-carbon \sigma and \pi bonding molecular orbitals of ethylene, H2C=CH2? C sp3 + C sp3, and C 2p + C 2p C sp3 + C sp3, and C sp2 + C sp2 C sp2 + C sp2, and C 2p + C 2p C sp2 + C sp2, and C sp2 + C sp2

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30-35. Slopes of tangent lines Find all points at which the following curves have the given slope. 30. $x = 2t$, $y = 3t^2 + 1$; slope = $-\frac{3}{2}$ 31. $x = 4 \cos t$, $y = 4 \sin t$; slope = $\frac{1}{2}$

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Question number 26. Simplify: \frac{25x^2 - 4}{10x^2 - 14x + 4} \frac{5x + 2}{10x - 4} \frac{5x + 2}{2x - 2} \frac{5x - 2}{2x + 4} \frac{5x - 2}{x - 2}

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An object that weighs 1090 N rests on a lever at a point 0.330 m from a support. On the same side of the support, at a distance of 3.00 m from it, an upward force with magnitude F is applied. Ignore the weight of the board itself. If the system is in equilibrium, what is F? Express your answer in Newtons. where P = 1090 and x = 0.330.

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RADICALS Solving an equation using the odd Solve x^(3)=11 where x is a real number. Simplify your answer as much as possible.

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3. Using the approach of Combinational Array Multiplier (CAM) a. Determine the exact number of AND gates and Full Adders needed to build a CAM for unsigned 16-bit multiplier. Assume only AND gates and Full Adders are available. Also determine the worst- case delay in terms of d (where d is two-level logic delay) b. Draw the detail design for a 5-bit CAM

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Question Three [25 marks] a) Write a java code segment to plot the following parametric equation: $x = \sin(t) \left(e^{\cos(t)} - 2\cos(4t) - \sin^5\left(\frac{t}{12}\right)\right)$ $y = \cos(t) \left(e^{\cos(t)} - 2\cos(4t) - \sin^5\left(\frac{t}{12}\right)\right)$ $0 \le t \le 12\pi$ Use suitable scaling values to show the drawing. b) Update the code in a) to show thick drawing without using Java strokes. c) Update the code in a) to show noisy shape d) Show snapshots for b), c)

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16) Assume that you have $200,000 invested in a stock that is returning 11.50%, $300,000 invested in a stock that is returning 22.75%, and $500,000 invested in a stock that is returning 10.25%. What is the expected return of your portfolio? A) 10.75% B) 12.50% C) 14.25% D) 15.50% 17) Stock Z has an expected return of 6% with a standard deviation of 12%. If returns are normally distributed, then approximately two-thirds of the time the return on stock Z will be A) between 0% and 18%. B) between 6% and 18%. C) between -6% and 18%. D) between 0% and 12%. 18) An investor currently holds the following portfolio: Amount Invested 8,000 shares of Stock A $16,000 Beta = 1.0 15,000 shares of Stock B $48,000 Beta = 1.5 25,000 shares of Stock C $96,000 Beta = 2.0 Page 5 of 7 If the risk-free rate of return is 2% and the market risk premium is 7%, then the required return on the portfolio is A) 14.25% B) 14.75% C) 15.25% D) 15.75%

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george b.