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tammy quinn

tammy q.

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(a) $$H_3C-O-CH_2$$ (b) $$N \equiv C-CH_2-CHO$$ (c) $$H_3C-C \equiv C-CH_2-Br$$ (d) (e)

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A battery chargers a parallel plate capacitor fully and then is removed. The plates are then slowly pulled apart. What happened to the potential difference better the plates as they are being seperated

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If you purchased a bond on August 1, 2021, on the secondary market with face value $10,000 and received $200 interest on January 1, 2022, you would owe tax on the interest earned on your 2021 tax return. Question 66Select one: True False

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a. Price ceilings create \if they are set \the equilibrium price. surpluses shortages b. Which of the following are price ceilings? rent control an agricultural price support price controls on prescription drugs the minimum wage

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CrispR/Cas9 was used to create a DSB in exon 1 of the Pika2 gene and did not give it a homologous template. Surviving cells have an insertion of a cytosine at the break-site. Describe two ways this indel could impact protein translation of the Pika1 gene

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What is the VSEPR notation for molecule of HO$_2$? a. AX$_2$E b. AX$_2$ c. AX$_2$E$_2$ d. AX$_3$

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Fe2+(aq) + Ag(aq) = Fe3+(aq) + Ag(s) Eosell

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<HW 13 Chapter 24 Problem 24.32 Part A At what angle will 570-nm light produce a second-order maximum when falling on a grating whose slits are $1.25 \times 10^{-3}$ cm apart? Express your answer using three significant figures. $\theta = $

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Page 3 Ex3/15 pts) A long solenoid of radias 25 mm has 1000 turms/m. A single loop of radius 5.0 cm is placed around the solenoid, The central axes of the loop arld the solenoid coincide. In 10 ms the current in-the-solerfoid drops from 1.0 A to 0.50 A at a uniform rate. Find the average emf in the loop. $\Delta i = 1.5 - 1.4$ A $\epsilon = -N \frac{d\Phi_B}{dt} = -\frac{d(\mu_0ni)(\pi r^2)}{dt} = -\mu_0n(\pi r^2)\frac{di}{dt}$ $d = \frac{1}{100} = .01$ $v = \frac{d}{t}$ $t = \frac{d}{v}$ $t = 1 \times 10^{-3} s$ $B = \mu_0ni$ $\mu_0$ Ex4.(15 pts) A beam of polarized light of intensity $I_0$ is incident on three consecutive polarizing sheets. The transmission axis of the first polarizing sheet makes an angle of 45° with the Incident light. The second and third polarizing sheets are parallel with each other an oriented with their transmission axis at 30° with respect to the transmission axis of the first polarizing sheet. What percentage of the initial light emerges from the three sheets? *not $\frac{1}{2}I_0$, because it is polarized light $I_1 = I_0 cos^2(45)$ $I_2 = I_1 cos^2(30)$ $I_3 = I_2 cos^2(30)$ $I_3 = cos^2(45) cos^2(30) = 28.1\%

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MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY MATLAB CODE ONLY (requires file data_p2824.csv): Use the RK4 method with a step size 𝛥𝑡 = 0.1 years. In Part (a), estimate parameters 𝑎, 𝑏, 𝑐, 𝑑 using trial and error, as in the previous problem. (They may not be “optimal”, but should give a decent fit). Choices will vary. Note the default parameter values given in the book for Part (c) are not very good—use your own values instead. 28.24 Isle Royale National Park is a 210-square-mile archipelagc composed of a single large island and many small islands in Lake Superior.Moose arrived around 1900 and by 1930,their population approached 3000, ravaging vegetation. In 1949, wolves crossed an ice bridge from Ontario. Since the late 1950s, the numbers of the moose and wolves have been tracked. (Dash indicates no data.) Year Moose Wolves 22 22 23 20 25 28 24 22 22 17 18 20 Yeer Moose Wolves 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 700 - - 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 836 802 815 778 641 507 543 675 577 570 590 811 23 24 30 41 43 33 40 42 50 30 13 23 881 - 1000 1150 966 674 a Integrate the Lotka-Volterra equations from 1960 through 2020. Determine the coefficient values that yield an optimal fit. Compare your simulation with these data using a time-series approach, and comment on the results. (b) Plot the simulation of (a), but use a phase-plane approach. (c)After 1993, suppose that the wildlife managers trap one wolf per year and transport it off the island. Predict how the populations of both the wolves and moose would evolve to the year 2020 Present your results as both time-series and phase-plane plots. For this case, as well as for (d), use the following coefficients: =0.3,b=0.01111,c=0.2106,d=0.0002632 (d) Suppose that in 1993, some poachers snuck onto the island and killed 50% of the moose. Predict how the populations of both the wolves and moose would evolve to the year 2020. Present your results as both time-series and phase-plane plots.

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