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lisa poole

lisa p.

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Chlorinated hydrocarbons act as contact poisons but are not considered to be broad spectrum or persistent. True False

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Suppose two particles of charge Q and q are separated by a distance d, resulting in a force of magnitude $F_0$ between them. If they are moved so the distance between them is 1.53 times what it was before, what is the ratio of the new force to the old force, $F_{new}/F_0$?

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Problem 1 (10 pts). The following is an adjacency matrix for a graph. $$A = \begin{bmatrix} 1 & 2 & 1 & 0 & 0 & 0 \\ 2 & 1 & 1 & 0 & 0 & 0 \\ 1 & 1 & 2 & 0 & 0 & 0 \\ 0 & 0 & 0 & 2 & 1 & 2 \\ 0 & 0 & 0 & 1 & 1 & 1 \\ 0 & 0 & 0 & 2 & 1 & 2 \end{bmatrix}$$ (a) Draw the graph. (b) Write two separate adjacency matrices for each connected component.

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1. In each of the following examples (a. to e.), identify suitable sampling method for the data collection and describe the reason. (a) A scientist investigates the public perception on drug abuse by questioning all the patrons who enter a departmental store. (2 marks) (b) A governmental department obtains an alphabetical list of 4327 public health workers in Ohio and constructs a pool of survey subjects by selecting every 50th name on the list. (2 marks) (c) In a survey of 7700 adults, interview subjects are selected by using a computer to randomly generate mobile numbers which are then called. (2 marks) (d) An art department administrator has grouped their faculty members into age categories: below 25, 26-30, 31-35, and above 35. She is surveying 20 members of each category. (2 marks) (e) A farmer has 1100 Chiku trees. He randomly selects 50 trees, and then picks all the fruits on those trees and measures the sugar content in each fruit. (2 marks)

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What is the crystal direction for the vector labeled "B"? [121] [021] [1/2 1 0] [101]

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A recession is generally defined as a period of six months or longer with no change or a decline in: Onominal GDP. Oreal GDP. Opotential GDP. consumer spending.

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Problem 1-33A (Algo) Preparing financial statements for two complete accounting cycles LO 1-3, 1-4, 1-5, 1-7, 1-8, 1-9 Mark's Consulting experienced the following transactions for Year 1, its first year of operations, and Year 2. Assume that all transactions involve the receipt or payment of cash. Transactions for Year 1: 1. Acquired $80,000 by issuing common stock. 2. Received $130,000 cash for providing services to customers. 3. Borrowed $21,000 cash from creditors. 4. Paid expenses amounting to $54,000. 5. Purchased land for $40,000 cash. Transactions for Year 2: Beginning account balances for Year 2 are: Cash Land Notes payable Common stock Retained earnings $137,000 $40,000 $21,000 $80,000 $76,000 1. Acquired an additional $26,000 from the issue of common stock. 2. Received $136,000 for providing services. 3. Paid $16,000 to creditors to reduce loan. 4. Paid expenses amounting to $69,000. 5. Paid a $12,000 dividend to the stockholders. 6. Determined that the market value of the land is $50,000.

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FRAP (Fluorescence Recovery After Photobleaching) allows measurement of which of the following:

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hich of the following is a normative economic principle? Multiple choice question. The Cost-Benefit Principle The Incentive Principle

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4. A oscillating wave-energy-converter (WEC) can be modelled as a mass-spring system forced by sinusoidal waves. A simple model would be given by the following DE: y"(t) + 2y'(t) + ky(t) = hsin(?t), where y measures the position of the WEC; k is a tuning parameter, chosen so that the WEC resonates with the waves; h is the height of the waves; and ? is the frequency of the waves (a) [10] Find the general solution of the model. (b) [1] What are the solutions as t gets large. (c) [3] Using your answer in (b), find the value of k that makes the amplitude oscillations the largest. Calculate the maximum amplitude. (d) [1] The length of the forcing waves is 2?/?. Will short or long waves create oscillations and, thus, more power?

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