Numerade

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3 points) Use algebraic techniques to evaluate the limit lim (x,y)→(3,1) 3x3 − 9x2y 9x2 − 81y2 .

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Which of the following is an example of cultural appropriation? A. A person from a minority group sharing their cultural heritage in a community event B. A company using elements from an oppressed group’s culture in advertisements for profit without acknowledgment C. A minority student wearing traditional clothing at school D. A tourist respectfully participating in a local cultural ritual with permission

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7.) Use the region generated by the ordered pairs (4,0), (4,2), and (6,2) revolved about the y-axis. a) Use the disk or washer method to find the volume. (ans: $\frac{56\pi}{3}$) b) Use the Shell method to find the volume. (ans: $\frac{56\pi}{3}$)

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Differences in skin pigmentation are due to the number of mousy in the basal layer of the skin people with darker skin have more sights than people with polar skin

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GDP measures total output in monetary terms, with each good or service valued at its market price because Multiple Choice accounting is much harder than using quantity weights on output. inflation is what economists care about. there is no obvious way of summarizing total output in physical terms. market prices are easily measured by the Federal Reserve.

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Yesterday, Ravi had 92 baseball cards. Today, he got k more. Using k, write an expression for the total number of baseball cards he has now.

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Texts: Answer ALL 1. A proton has an initial upward velocity of 513 m/s in a uniform electric field of magnitude 4.2x10^N/C directed to the west. Find the acceleration of the proton. a. 4.0x10^m/s^2 upward b. 4.0x10^m/s^2 westward c. 2.5x10^m/s^2 upward d. 2.5x10^m/s^2 southward 2. A proton has an initial upward velocity of 513 m/s in a uniform magnetic field of magnitude 5.0 T directed to the west. Find the acceleration of the proton. a. 4.0x10^m/s^2 upward b. 4.0x10^m/s^2 westward c. 2.5x10^m/s^2 upward d. 2.5x10^m/s^2 southward 3. The SI unit for emf is: a. Tesla (T) b. Farad (F) c. Ohm (Ω) d. Volt (V) 4. 580 nm light travels through air and strikes the smooth surface of a piece of fluorite at 34.0° relative to normal. What is the angle of reflection off the air-fluorite interface? a. 17.0° b. 23.0° c. 34.0° d. 405° 5. 580 nm light travels through air and strikes the smooth surface of a piece of fluorite interface. a. 17.0° b. 23.0° c. 34.0° d. 405° 6. An object is viewed through a planoconvex lens and the image has a magnification of -2.30. Describe the image. a. Upright, reduced in size b. Upright, enlarged c. Inverted, reduced in size d. Inverted, enlarged 7. Unpolarized light passes through a polarizer with a vertical transmission axis. Which expression describes the intensity of the light after the polarizer? a. 0 b. 1/2 c. Lcos^2θ d. Io

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Find the value of the reaction forces on the shelf shown below. The shelf itself has a weight of 30 N and its centre of mass is midway between X and Y. Please give the values of the reaction forces at X and Y (Values shown on diagram; distances, 0.4 m, 1.2 m and 0.9 m; weights, 45 N, 30 N, 90 N, 40 N)

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9. An AC generator has a series internal impedance of 100+10000j m-ohms and an open circuit voltage of 480 V. What is the maximum power that it can deliver? (show the work) a. 48kw b. 23.04watts c. 5760 watts d. 48 MW e. 2.304 MW

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1. In 1992, the U.S. experienced a substantial budget deficit. By the end of his time in office, President Bill Clinton (together with the U.S. Congress) reduced government spending and increased taxes. Based on the closed-economy model discussed in class: a) What would you predict happened to the government budget deficit? Explain. b) Explain the effect of this policy on national savings. c) Use the graph of savings/investment to show the impact of this policy on national savings and the real interest rate. d) What does the model predict about the level of investment? Explain. 2. Some members of Congress are advocating for the pursuit of a 'balanced federal budget', i.e., keeping T and G on the same level. Assume that Congress balances the federal budget. Suppose that the following year Congress increases taxes by $200 billion dollars and that government spending is increased by the same amount (i.e., G is increased by $200 billion). Use the closed-economy model discussed in class: a) What would be the effect on the federal budget balance? Explain. b) What would happen to national savings? Explain. c) What would happen to interest rates? Explain.

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susan b.