Numerade

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? Question 1 Identify the functional group for circles a, b, and c in the structure of alpha tocopherol (vitamin E). A RB НО, CH3 CH3 CH3 CH3 R2 CH3 CH3 Tocopherol

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Water has the ability to filter out wavelengths of the sun’s ultraviolet radiation that would harm some aquatic organisms. Group of answer choices True False

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2. Water is flowing in a horizontal 1 in. Sch.40 steel pipe (ID=26.6mm, OD=33.4mm, $k_w$=45 W/m-K) at an average velocity of 2.5 m/s. It enters the pipe at 20°C and leaves at 60°C. It is being heated by condensing steam at 107°C on the outside of the pipe wall. The steam side heat transfer coefficient can be taken as $h_o$=10000 W/m²-K. You may assume that the fouling factors can be neglected. Determine the length of the pipe required.

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Select the answer that describes the idea of "white minority-world focus." The idea that bisexuality is immature in regard to other sexualities The idea that racism is engrained in societal systems and structures through white privilege and white supremacy The idea that the views held by a white minority are the views upon which our understanding should be based Anzaldua's idea that race categories are one vital way in which people are identified and policed

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Question 3 Building resilience is connected with... O Emotional intelligence O Not asking for help O Studying more 1 pts

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Which of the following is the best reason why firms in an oligopoly maintain prices above marginal cost? They are all using a dynamic pricing strategy like "tit-for-tat" The firms have formed an explicit cartel to keep prices high The firms' mangers are incompetent The firms are not actually in an oligopoly market

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Online 17 Question 18 The functional role of T-tubules is to? Ostabilize the G and F actin Orelay the action potential to the interior of the muscle fiber. Ohold cross bridges in place in a resting muscle Osynthesize ATP to provide energy for muscle contraction 5 pts

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The given program reads a list of single-word first names and ages (ending with -1), and outputs that list with the age incremented. The program fails and throws an exception if the second input on a line is a string rather than an int. At FIXME in the code, add a try/catch statement to catch ios_base::failure, and output 0 for the age. Ex: If the input is: Lee 18 Lua 21 Mary Beth 19 Stu 33 -1 then the output is: Lee 19 Lua 22 Mary 0 Stu 34 Note: Insert the following code in the catch block to clear the failbit and cin buffer so a new input can be read correctly: // Clear failbit to be able to use cin again cin.clear(); // Throw away the rest of the failed input line from cin buffer string garbage; getline(cin, garbage);

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3-7. As shown in the chapter, Einstein's postulates predict that in empty space, the speed of light is the same to any inertial observer (that is, to any observer who travels in a straight line at constant speed.) However, we can show that there is a limit to how fast such an observer can travel! Consider the following thought 38 Chapter 3 / Einstein's Postulates experiment: We suddenly turn on a laser beam moving at velocity $c$ relative to us, just as three hypothetical observers pass by us in the same direction as the beam. The first observer has velocity $c/2$, the second has velocity $0.999c$, and the third has velocity $c$. Give an argument why, if metersticks had different lengths in different frames, or clocks ticked at different rates in different frames, it is not impossible that the first and second observers could measure the beam to be moving at speed $c$ relative to them, but that the third observer could not find that the beam is moving at speed $c$ relative to her.

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6. (5 pts each) Given that $\cos \alpha = -\frac{12}{13} \left( \frac{\pi}{2} < \alpha < \pi \right)$ and $\cot \theta = \frac{3}{4} \left( \pi < \theta < \frac{3\pi}{2} \right)$, use the trigonometric identities to find the exact values of: (a) $\cos(\theta - \alpha)$ (b) $\tan(2\alpha)$

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stacy s.