Numerade

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Alef moe.alefed.com/?1730903954129\#/progress/assessment/17173c5e-33cc-4c24-9f8e-886d5c0b15fd/lesson/16924296-de8b-4c76-9c39-0000... Managed bookmarks ? Back 31. My Exit Ticket Select the correct answer. Why would doing the same diffusion experiment in a $ 20^{\circ} \mathrm{C} $ lab and a $ 20^{\circ} \mathrm{C} $ classroom show no change in the rate of diffusion? The temperature is too high to show a The classroom does not have the difference in the rate of diffusion. equipment to help test the rate of diffusion. The lab has equipment that can help The only factor that has changed for students test the rate of diffusion. the two experiments is the location. $ 3 / 3 $ Previous

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1. Consider the substance A below. $ \mathrm{S}=\mathrm{C}=\mathrm{NH} $ Substance A (a) What is the molecular geometry of substance $ A $ with respect to the carbon atom? Answer: $ \qquad $ (2 marks) (b) What is the hybridization of the sulfur atom? $ \qquad $ (2 marks) (c) What is the hybridization of the carbon atom? $ \qquad $ (2marks) (d) What is the hybridization of the nitrogen atom? $ \qquad $ (2marks) (e) What is the IUPAC name of substance A? $ \qquad $ (2 marks) (f) Does substance A have a dipole moment? Yes/NO, if yes what is its direction? (g) Draw a picture of substance A showing the orbitals involved in the $ \sigma $ and $ \pi $ bonds including its lone pairs.

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How much work is done by the boy pulling his sister 29 m in a wagon as shown in the figure below? F 30° d Assume no friction acts on the wagon. (Assume $d = 29$ m and $F = 49$ N.)

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2. A series of two-point crosses were carried out among seven loci (a, b, c, d, e, f, and g), producing the following recombination frequencies. Using these data, map the seven loci, showing their linkage groups, the order of the loci in each linkage group, and the distance between the loci of each group. Recombination Recombination Loci Loci frequency (%) frequency (%) a and b 10 c and d 50 a and c 50 c and e 8 a and d 14 c and f 50 a and e 50 c and g 12 a and f 50 d and e 50 a and g 50 d and f 50 b and c 50 d and g 50 b and d 4 e and f 50 b and e 50 e and g 18 b and f 50 f and g 50 b and g 50

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Moose fish are true ectotherms and allow the temperature of the surrounding water to determine their body temperature. Some mackerel and billfish, on the other hand, are able to maintain the temperature of their brain almost 10 degrees above the ambient water temperature. What is the mechanism behind this?

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In a crossed-extensor reflex, if you stepped on something sharp, and pulled your foot away, it would flex and the other leg would do which of the following? Question 2 options: extend extend and adduct adduct abduct also flex

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1. Consider the following three filters G, E, and M. G is a Gaussian smoothing kernel, E is one of the linear kernels used by the Sobel edge detector and M is a median filter. Is applying G to an image followed by E equivalent to applying E to an image followed by G? How about if M is used in place of G? In both cases, explain your answer. 2. Prove that a rotation followed by uniform scaling is commutative. 3. Describe one major advantage and one disadvantage of using an isotropic operator (Laplacian). 4. Name the gradient operator used in Marr vs. Canny edge detector. 5. Gaussian filtering is usually a preferred averaging method (than Mean filtering). Why?

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1. Plasmids are self-replicating single stranded fragments of eukaryotic DNA. a. True b. False 2. Adult cells cannot be used as the source of nuclei for cloning animals. a. True b. False 3. Recombinant vectors are often propagated in bacterial cells. a. True b. False 4. Bt crops contain a gene making them resistant to common herbicides. a. True b. False 5. Stem cells contained a renewed set of DNA. a. True b. False 6. The vectors most commonly used in recombinant DNA technology are __viruses_____. a. True b. False 7. The USDA requires that food products from genetically modified organisms be clearly labeled as such. a. True b. False 8. Adult stem cells are as good as embryonic stem cells. a. True b. False 9. Animal genes cannot function in plants. a. True b. False 10. Human insulin is produced in transgenic hamster cells. a. True b. False

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What is the end behavior of f(x) in the function f(x) = log(x) as x goes to infinity? (You can enter pi for positive infinity and ni for negative infinity.)

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3) A child hops along on one foot, making two hops per second. With each hop, the vertical component of the impulse $\int F(t)dt$ on the child by the ground is 150 Ns per hop. (a) If the child's foot is in contact with the ground for 0.10 seconds, what is the time-average force on the child by the ground during that interval of time (in lbs)? (b) If 100 hopping children as described in (a) are distributed over a 2500 square-foot parking lot, what is the average pressure exerted by the children on the parking lot (in psi)? (c) How much does the child weigh (in lbs)?

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justin b.