Numerade

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What is the approximate C-C-C bond angle in propene, CH₃CH=CH₂? Select the single best answer. O 120° O 90° O 109.5° O 180°

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Two L4 \times 4\times (1)/(2)-in. angles are welded to a steel plate as shown in the figure, where h=18in. Determine the moments of inertia of the combined section with respect to centroidal axes, parallel and perpendicular to the plate. ◻ The moment of inertia of the combined section with respect to centroidal axis parallel to the plate is ◻ in ^(4). The moment of inertia of the combined section with respect to centroidal axis perpendicular to the plate is ◻ in ^(4).

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The branches of the abdominal aorta routinely visualized on ultrasound are A celiac axis, superior mesenteric artery, renal arteries, and common iliac arteries. B celiac axis, inferior mesenteric artery, renal arteries, and common iliac arteries. C superior mesenteric artery, inferior mesenteric artery, and common iliac arteries. D renal arteries, gonadal arteries, and common iliac arteries.

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c. Which solution is the most basic? 6. Metallic ions with a higher positive charge are more strongly hydrated and tend to be more acidic in solution. Comparing a 0.12 M FeCl3 solution to a 0.12 M FeCl2 solution, which solution would have a lower pH? Explain.

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Select the FALSE statement about HIV-2. Group of answer choices HIV-2 is more virulent than HIV-1. HIV-2 predominates in West Africa. HIV-2 has a longer latency period than HIV-1.

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Which of the following characterizes Gram-positive bacteria? the presence of an outer membrane the presence of a thick cellwall p, the absence of a cell wall c a. the absence of ribosomes

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what are trans-fatty acids? how are they formed? in what kinds of foods are they found? are they saturated or unsaturated fatty acids? what is the significance of the presence of trans-fatty acids in the foods that we eat?

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Find the pH at 25°C of [HA] = [A–] = 1.00 M solution. Ka = 6.2×10-8

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uciferase is only made in the firefly's tail. Are the cells in the tail the only cells that contain the luciferase gene? Why or why not?No. Each cell in the firefly contains every gene in the firefly genome.B Yes. Since luciferase is only made in the tail, the gene is only present in the tail cells. © ves. The luciferase protein in the tail cells produces the luciferase gene only in those cells.D No. The luciferase gene is present in the tail cells and the gamete cells only.

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Evaluate each limit algebraically. lim_{x o 5} frac{sqrt{x+4}-3}{x-5} sqrt{5} 0 frac{1}{6} 3 overline{5} DNE Evaluate each limit algebraically lim_{x o 5} frac{x+4}{x-5} 5 DNE

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sarah f.