Numerade

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Example: A conventional 230:115 kV 300 MVA 3P Y:Y transformer has R₁(HV)=1.32 Ω and R₂(LV)=0.33 2 in each phase. Compare the total 3P winding losses if this transformer supplies rated load (LV) current operating as a conventional transformer vs. if it's existing windings are connected to operate as an autotransformer Example H1 X₁ 132.79 kV 100 MVA R=1.32 Ω 66.4 kV 100 MVA R=0.33 Ω H2 X2 Conventional Configuration (input H₁-H₂, output X₁-X₂) PL=(753)2(1.32)+(1506)2(0.33) =1.5 MW per phase Auto Configuration (input H₁-X2, connect H₂-X₁, output X₁-X₂) PL=(753)2(1.32)+(1506-753)2(0.33) =0.94 MW per phase Auto configuration "concept" offers 37% efficiency gain and cost reduction Actual auto would use fewer HV turns and smaller LV conductors for cost reduction →PL=(753)2(0.66)+(1506-753)2(0.66)=0.75 MW per phase (50% savings)

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Determine the moment of inertia "$I_x$" of the shaded area about the x-axis. 10 mm 180 mm 100 mm 10 mm 10 mm 100 mm

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When Johnson talks about racism as a path of least resistance, he means that: Question 1 options: B) Whether someone intends to be racist or not matters when they express racist ideas D) Paths of least resistance will always trump people's ability to avoid racist behaviour C) The logic of racism shows up in people's understanding of and action in the world A) There will always be racist people in society because it provides an easy way to understand inequality

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DNA polymerase is most likely to be active during a. prophase b. telophase c. G0 d. cytokinesis e. S-phase

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Present an industry reference to determine whether the current reverberation time is appropriate for the room's intended use. If the reverberation time is too high or too low, how much absorption should be added to the room to meet recommendations?

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C = \{(x, y) \in \mathbb{R}^2 \mid y^2 = x^6(1 - x^2)\}. (a) Is C a curve? If yes, why yes? If no, why not? (b) Find a parametrisation of C and sketch C. Be sure to specify the domain of your parametrisation. Hint: a nice set of identities to consider are $\cos^2(\frac{t}{2}) = \frac{1 + \cos t}{2}$, $\sin^2(\frac{t}{2}) = \frac{1 - \cos t}{2}$, and $\sin t = 2\sin(\frac{t}{2})\cos(\frac{t}{2})$. (c) Find the tangent line to C at $(\frac{\sqrt{2}}{2}, \frac{1}{4})$.

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Organelles of Plant and Animal Cells Name of Organelle Found in Plant, Animal, or Both Function Rigid, protective layer of cellulose that helps maintain cell shape Cell Wall Plant Cell Membrane Both Cytoplasm Both Mitochondrion Both Site where cell harvest energy from food molecules. Nucleus Both Nucleolus Both Nuclear Membrane Both Smooth Endoplasmic Reticulum Both Rough Endoplasmic Reticulum Both Chloroplast Plant Converts light energy to food energy during photosynthesis. Centrosome Golgi Body Both Receives, refines, & ships many cellular products. Vacuole Ribosome Both Central Vacuole Plant Storage sac that holds substances like nutrients & water. Cilia Flagellum Lysosome Animal Long appendage that propels the cell. Digestive enzymes that can break down and recycle foreign/worn out cellular substances.

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3. Is it normal for children to make mistakes? Should an Early Childhood Educator Assistant have realistic expectations? (Page 4)

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Using the mean-per-unit estimation method an auditor has properly calculated the estimated total audited value of a population as $200,000. Her sample included 200 of the population's 40,000 items. She found that, in her sample, the average audited value was $1 more than the average book value. What was the average book value in the sample? Multiple Choice $6 $10 $8 $4

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Exercise #3_(if-else) Write a program that prompts the user to enter the grades for three courses. The program then calculates the average of the student in the course and prints his GPA, letter grade and percentage grade. [Use if-else, +=] Letter Percentage GPA Grade Grade 4-3 A+ 97%-100% 4 A 93%<97% 3.7 A- 90%<93% 3-3 B+ 87%<90% 3 B 83%<87% 2.7 B- 80%<83% 2.3 C+ 77%<80% 2 C 73%<77% 1.7 C- 70%<73% 1.3 D+ 67%<70% 1 D 63%<67% 0.7 D- 60%<63% 0 F 0%<60% enter grade in course #1: 87.5 enter grade in course #2: 65 enter grade in course #3: 76.7 percentage average = 76.4 GPA = 2 letter grade = C

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mackenzie h.