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QUESTION 2 (30 MARKS) 2.1 Provide the necessary SQL code to create a table named Student, with columns as shown in Student_No Student_Name Student_Surname Student_Specialisation Figure 1. Ensure that the columns have appropriate data types. (5)

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Question 44 2 pts Some colleges charge all students the same fee for a weekly dining services meal plan. Suppose that students differ by how much food they consume each week. For example, members of the women's swimming team consume, on average, twice as much food as the average female college student, and the average male college student consumes 20 percent more food than the average female college student. The dining services fee is most like a(n) Olump-sum tax that violates the benefits principle. excise tax that conforms to the benefits principle. lump-sum tax that conforms to the benefits principle. excise tax that violates the benefits principle.

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Considering the economic impact on high earners, how might we balance increasing Social Security funding without creating significant disincentives for investment and productivity?

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_(_______________ is when one class 'owns' an instance of another class. Group of answer choices Dependency Aggregation Composition Inheritance)

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The turret controls the _____. Responses light source light source objective lenses objective lenses stage position stage position All of the above All of the above

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The cerebral cortex is divided into three functional areas? conscious motor sensory unconscious involuntary association

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Which of the following nerves arise from the posterior cord of the brachial plexus? O Median n. O Radial and axillary nerves O Axillary n. O Radial n. O Radial and Median nerves

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8. A blob of green colored goo of 8.4kg is floating north in space at 1.85m/s when it collides with a 6.2kg blob of purple colored goo floating east at 4.40 m/s. The stick together and continue flying at a common velocity. a. (1pt) Draw an appropriate representation of the collision. b. (1pt) Write the two conservation of momentum equations that govern this problem. Use subscript g for the green colored glob and the subscript p for the purple colored blob. Take east as +x and north as +y. $x: m_p v_p + 0 = (m_g + m_p) v'cos\theta$ $y: 0 + m_g v_g = (m_g + m_p) v'sin\theta$ c. (1pt) Find the direction north of east of the velocity of the combined goo ball. $\tan^{-1}(\frac{y}{x})$ $\tan^{-1}(\frac{1.06}{1.86}) = 29.7^\circ$ d. (1pt) Find the speed of the combined goo ball. $x = (6.2kg)(4.4mls) + 0 = (6.2kg + 8.4kg)v$ $v_x = 1.86m/s$ $y = 0 + (8.4kg)(1.85mls) = (8.4kg + 6.2kg)v$ $v_y = 1.06m/s$ $a^2 + b^2 = c^2$ $1.86^2 + 1.06^2 = c^2$ $2.15 mls$

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8. A container of gas at 3atm of pressure contains the following gases: 2 moles of nitrogen, 3 moles of helium, and 0.5 moles of krypton. What is the partial pressure of helium?

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10. A sample of poly(a-methylstyrene) having a weight-average molecular weight of $4.10 \times 10^6$ g/mol behaves as a random coil in toluene solutions with a root-mean-square end-to-end separation of 2609 Å. The second virial coefficient of the solution is $\Gamma = 709$ cm³/g. the refractive index of toluene is 1.4976, and the specific refractive index increment of the solution is $0.1370$ cm³/g. Use the appropriate scattering function and any other expressions in this chapter to calculate the Rayleigh ratio, $R(\theta)$, as a function of scattering angle in the range $15^\circ$ to $150^\circ$ for a solution with $c = 1.0 \times 10^{-4}$ g/cm³. Plot the Rayleigh ratios

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barbara k.