Numerade

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The average Iphone price is $900 whereas for Android phones the average price is $350. Therefore the Iphone price strategy is an example of

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. A charge is in an electric field. What happens if that charge is replaced by a charge? (a) The electric potential doubles, but the electric potential energy stays the same. (b) The electric potential stays the same, but the electric potential energy doubles. (c) Both the electric potential and electric potential energy double. (d) Both the electric potential and electric potential energy stay the same.

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14. (2 pts ea = 8 pts) Classify the following binary element-hydrogen compounds as: metallic hydridic covalent protic $PH_3$ $BeH_2$ $HF$ $PtH_{0.33}$ 15. (3 pts) Provide a balanced equation for the reduction of water using elemental sodium: 16. (3 pts) Provide a balanced equation for the reaction of calcium hydride in water: 17. (3 pts) Provide a balanced equation for the Haber-Bosch process: 18. (3 pts) Provide a balanced equation of a reaction in which hydrogen acted as an oxidant: 19. (3 pts) Circle the compound that is the most likely to undergo homolytic element-H bond cleavage: $H_2O$ $(CH_3)_3SiH$ $(CH_3)_3SnH$

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Additive color system, artists mix pigments to control the light that is reflected from them. Pigments are powdered substances ground into oil, acrylic polymer, or other binders to create paints. In the subtractive color system, white is a pigment that that reflects almost the entire spectrum of light. Black absorbs almost all light, reflecting back very little. ? True ? False

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MONEY is an example of a ______ type. O integer Obinary O character O semantic

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Text: A rectangular auditorium seats 1394 people. The number of seats in each row exceeds the number of rows by 7. Find the number of seats in each row.

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Find the value V of the Riemann sum $V = \sum_{k=1}^{n} f(c_k) \Delta x_k$ for the function $f(x) = x^2 - 2$ using the partition $P = \{1, 3, 6, 8\}$, where the $c_k$ are the midpoints of the partition intervals.

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The determination of prices in the market for automobiles is primarily a concern of positive economics. normative economics. microeconomics. macroeconomics. Question 11 (1 point) Scarcity would cease to exist as an economic problem if we learned to cooperate and not compete with each other. there were new discoveries of an abundance of natural resources. output per worker increased. none of the above. Question 12 (1 point) If individuals who sit in the back of the classroom receive lower grades on average than the rest of the class, does that mean that sitting in the back of a classroom causes one to perform poorly on exams? Not necessarily. The reoccurrence of a certain relationship between two variables does not necessarily imply causation It is not possible for an economist to determine causation between variables. The reoccurrence of such a relationship is sufficient evidence that sitting in the back of a classroom will lead to lower grades. none of the above

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6. Let $F(x, y, z) = (y^2 + z^2, 2x^2 + y^2, y^2)$. Compute the line integral $\int_C \mathbf{F} \cdot d\mathbf{r}$, where C is the triangle with vertices $(1, 1, 1)$, $(1, 2, 0)$ and $(0, 1, 3)$. The triangle C is traversed in the following order $(1, 1, 1)$, $(1, 2, 0)$ and $(0, 1, 3)$ and $(1, 1, 1)$. (Ch. 16.5) (4 p)

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A transmission line has input voltage of 1V and current of 1A. It has characteristic impedance, phase constant and length equal to unity. Analyse its Output voltage and current.

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jacob w.