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4 At a downwind distance of 800 metres from a 75 metres source having a 180 metres plume rise, $\sigma_y$ is estimated as 84 metres, and $\sigma_z$ is estimated as 50 m. How much is the plume's ground-level, centerline concentration of SO$_2$ at this distance? Given that at 10-meter height from the ground, wind velocity is 2.5 m/s. $\alpha$ =0.25, Q = 500 g/s. The ground level concentrations can be calculated using the equation: $\langle\rho_A\rangle(x, y, 0, H) = \frac{Q}{\pi\sigma_y\sigma_z} \exp\left[-\frac{1}{2}\left(\frac{y}{\sigma_y}\right)^2\right] \exp\left[-\frac{1}{2}\left(\frac{H}{\sigma_z}\right)^2\right]$

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A clothing company sells a vintage swim suit for $69.95 per suit. The variable costs of producing x thousand suits are $-x^2 + 275.00x + 2,225,000 dollars, and the fixed costs of manufacturing are $25,000. Find expressions for the revenue, costs, and profit from selling x thousand items. (8 points) Cost: Fixed Cost + Variable Costs

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A plant (original) with red flowers and rough fruits was allowed to self-fertilize. From the resulting seeds, 400 adult plants were obtained. The phenotypes of these offspring are: 204 red flowers and rough fruits; 96 red flowers and smooth fruits; 96 white flowers and rough fruits; and 4 white flowers and smooth fruits. Are there any genes involved with these two traits linked? No Yes, two of them are linked, and the map distance between them is 5 m.u. Yes, two of them are linked, and the map distance between them is 10 m.u. Yes, two of them are linked, and the map distance between them is 20 m.u. Yes, two of them are linked, and the map distance between them is 40 m.u. Yes, two of them are linked, and the map distance between them is 80 m.u. None of these above

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The Galactic Senate is considering a hyperspace bypass loop that is expected to save lightspeed travelers $820,000 per year in coaxium and other spacecraft maintenance-related expenses. However, local businesses will experience revenue losses estimated to be $135,000 each year. The cost of the loop will be $9,000,000.(a) Calculate the conventional B/C ratio using an interest rate of 6% per year and a20-year project period. (b) Is the project economically justified, why or why not?

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Select the employee stock option feature that would prevent an executive from exercising its awarded options early. A 2-year vesting period. A 5 year expiration date. Unfavourable tax treatment. The stock price being higher than the exercise price.

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To be diagnosed, a specific phobia must be present ? at least 2 years. ? at least 3 months ? at least one year ? at least 6 months

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When information from most of the senses enters the brain, it must first enter the which functions as a relay center sending the information to the rest of the brain. O thalamus O hypothalamus O amygdala O medulla O hipppcampus

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A supply curve measures (check all that apply) Group of answer choices the quantity a sellers would like to sell at given prices the seller's maximum willingness to accept payment for the Qth unit the value to the seller for the Qth unit the marginal cost of producing the Qth unit

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Compute four slope estimates for $f(x) = \frac{4}{x^3}$ at $x = 2$ by choosing four different tiny numbers $h$. (Use two positive and two negative choices for $h$.) Make a guess about the true value of the slope at $x = 2$.

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Which of the following locomotion is associated with having longer arms than legs? Group of answer choices arboreal quadrupedalism terrestrial quadrupedalism brachiation vertical clinging and leaping

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lori s.