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josefa cohen

josefa c.

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Evaluate the indefinite integral. $$ \int \frac{7}{(t+11)^4} dt $$ $$ + C $$

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Which of the following is NOT a limited benefit plan? Dental policy Critical illness policy Cancer policy Life insurance policy

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The slits in a Young’s interference apparatus are illuminated with monochromatic light of wavelength λ. The third dark band is y from the central axis. The two slits are d apart and the screen is L away from the slits. We want to calculate the wavelength of the light used. r2 r1 y L d S1 S2 θ = tan −1 y L viewing screen δ ≈ d sin θ ≈ r2 − r1 P O 6 S2 Q S1 ≈ 90◦ Q What is y in terms of λ, d and L? 1. y = 2 λ d L 2. y = 3 λ L d 3. y = λ d L 4. y = 3 λ d L 5. y = λ L d 6. y = 7 2 λ d L 7. y = 2 λ L d 8. y = 5 2 λ d L 9. y = 5 2 λ L d 10. y = 7 2 λ L d 004 (part 2 of 2) 10.0 points Compute the wavelength in this experiment if y = 10.3 mm, L = 147 cm and d = 0.273 mm. Answer in units of m.

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Which is a non-living part of Cnidaria body plan. Group of answer choices medusa polyp mesolgea One of the two tissues

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If the demand increases for the product of a decreasing-cost industry:

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3. The center of a loop with area 10<sup>-6</sup>m<sup>2</sup> is 1mm from a current wire as shown. (Both are in the plane of the page.) The current in the wire increases from 5A to 10A in 2 seconds. What is the voltage or induced emf in the loop? B is out of page 1. What are the pieces? I 2. Write the flux: 3. What is changing? 4. Write the change in flux for all the loops: 5. The induced emf is:

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Suppose a simple random sample size n=43 is obtained from a population with mean=69 and standard deviation=14. P( x̄ < 73.1) = (Round to four decimal places as needed.)

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The average room rate for a hotel in a city in 2016 was $348. Suppose the city's Chamber of Commerce would like to test if this rate has changed recently by randomly sampling 52 room rates. The mean of this sample was found to be $361.34. Assume the population standard deviation is $56. Using $\alpha = 0.05$, complete parts a through c. a. State the null and alternative hypothesis. Let $\mu$ be the population mean. Determine the null hypothesis, $H_0$, and the alternative hypothesis, $H_1$. $H_0: \mu = 348$ $H_1: \mu \neq 348$ (Type integers or decimals. Do not round. Do not include the $ symbol in your answers.) b. What conclusions can be drawn for this test? Identify the critical value. $z_{\alpha/2} = 1.96$ (Round to two decimal places as needed.) Calculate the appropriate test statistic. $z_x = \boxed{}$ (Round to two decimal places as needed.)

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During the holiday party, Adam introduces John to the audience. John is still nervous, but he suddenly remembers reading about the ways he can handle anxiety before giving a speech. Determine which statement describes a tool for managing trait anxiety. Massage your face to loosen up your cheeks and jaw. Practice early and often so you feel more prepared. Sit in a dark room and go over your speech. Tell yourself that the outcome is out of your control and accept what comes.

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10. For each of the following problems, specify which data structure would allow for the most efficient implementation? a. Storing a mapping of vertices to their nearest neighbor in Dijkstra's algorithm. 4pts b. Storing a collection of tree nodes waiting to be merged into a Huffman tree. c. Storing an ordered map/dictionary. d. Storing an unordered map/dictionary. e. Detecting potential cycles in Kruskal's algorithm. f. Storing a sparsely connected graph. g. Storing the list of vertices left to explore in: i. DFS ii. BFS

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