OC userin Chemistry·21 Dec 201778. A 0.446-g sample of an unknown monoprotic acid is titrated with 0.105 M KOH. The resulting titration curve is shown here. Determine the molar mass and pK, of the acid. pH OOO 0 20 40 60 80 100 Volume of base added (mL)
OC userin Economics·19 Dec 201711) A rise in the price of a good A) creates a movement up along the supply curve. B) decreases demand for the good. C) increases preferences for the good. D) increases the supply of the good. E) creates a movement down along the demand curve.
OC userin Economics·19 Dec 20177) Which one of the following is a part of the opportunity cost of attending college for an individual who lives on their own? A) cost of clothing B) cost of transportation C) cost of renting movies D) cost of tuition E) cost of meals
OC userin Economics·22 Dec 201750) Which of the following statements are true? I. Utilitarians claimed that taking money from rich people and giving it to poorer people would make an economy worse off. II. Utilitarians took into account the costs of making income transfers. III. The "big tradeoff" is between efficiency and equity. A) II and III B) I and III C) I and II D) I, II, and III E) III only
OC userin Mathematics·19 Dec 2017[3] 3. (a) Find the indefinite integral re dr. [4] (b) Evaluate the integral (* In 1 dr. J (c) Evaluate the integral sin rd.r.
OC userin Physics·22 Dec 201711.1. A 0.120-kg, 50.0-cm-long uniform bar has a small 0.055-kg mass glued to its left end and a small 0.110-kg mass glued to the other end. The two small masses can each be treated as point masses. You want to balance this system horizontally on a fulcrum placed just under its center of gravity. How far from the left end should the fulcrum be placed?
OC userin Physics·20 Dec 201769. Which pair of elements do you expect to be most similar? Why? a. Nand Ni b. Mo and Sn c. Na and Mg d. Cl and F e. Si and P
OC userin Computer Science·22 Dec 2017standard. 26. Ethernet is standardized as the a. 802.11 b. 802.3 C. 802.15 d. ZigBee
OC userin Mathematics·19 Dec 20177. Let p(x) = 3x4 – 2r3 + x – 5. (C) Find the quotient ? 2 + . State the quotient and residue. 1
OC userin Economics·20 Dec 201723. The government places a $30 per unit tax on the buyers of widgets. At the new equilibrium, the price received by sellers will be: A) $120 B) $123 C) $126 D) $129 E) $132 F) $135 G) $138 H) $141 1) $144 J) $147 K) $150 L) $153 M) $156 N) $159 0) $162 P) $165 Q) $168 R) $171 S) $174 T) $177 U) $180 V) $183 W) $240 X) $1500 Y) $3000 Z) none of the above
OC userin Physics·21 Dec 20172.28 . Entering the Freeway. A car sits on an entrance ramp to a freeway, waiting for a break in the traffic. Then the driver ac- celerates with constant acceleration along the ramp and onto the freeway. The car starts from rest, moves in a straight line, and has a speed of 20 m/s (45 mi/h) when it reaches the end of the 120-m- long ramp. (a) What is the acceleration of the car? (b) How much time does it take the car to travel the length of the ramp? (c) The traffic on the freeway is moving at a constant speed of 20 m/s. What distance does the traffic travel while the car is moving the length of the ramp?
OC userin Mathematics·19 Dec 20177. Suppose a function f has a local maximum at r=0 with f(0) = 4, f"(x) > 0 for 2 € (-1,0) and f"(x) > 0 for x = (0,2). What can you say about f'(0)? Hint: It might help to try to sketch the graph of f(x) near x = 0.
OC userin Management·20 Dec 201714) Partnerships, generally, are more advantageous than sole proprietorships because: a) b) partners are jointly and severally liable there are many types of partnerships many people can be the president of the company the talents of the partners can be pooled some businesses can only be formed as partnerships e)
OC userin Chemistry·19 Dec 201739. Calculate the frequency of each wavelength of electromagnetic radiation. a. 632.8 nm (wavelength of red light from helium-neon laser) b. 503 nm (wavelength of maximum solar radiation) c. 0.052 nm (a wavelength contained in medical X-rays)
OC userin Computer Science·19 Dec 20173. Which image is drawn by the following program? translate (50, 50); rotate (radians (45)); line (0, 0, 20, 0); translate (20, 0); rect(0, 0, 20, 10);