Two people start from the same point. One walks east at 3 mi/h and the other walks northeast at 2 mi/h. How fast is the distance between the people changing after 15 minutes?? Thanks for help !!
Imagine two solutions with the same concentration and the same boiling point, but one has benzene as the solvent and the other has carbon tetrachloride as the solvent. Determine that molal concentration, m (or b), and boiling point, Tb. benzene boiling point=80.1 Kb=2.53 carbon tetrachloride boiling point=76.8 Kb=5.03
10. In the following phase diagram for Zn-Cu Alloy. Label one eutectic, eutectoid and peritectic point and write down the reactions and all other relevant details. Also explain the eutectoid reaction i.e. why does one solid phase convert to two solid phases as the alloy cools down.....(5 points) Composition (at% Zn) 20 40 60 80 12000 100 2200 2000 a...
11. Point P(4,2,3) is on one of the level surfaces of g(x, y, z) = e*+4xy”. Write an equation of the plane tangent to this surface at point P. a)5(x-4) - 7(y-2) + 6(2-3) = 0 b)-8(x-4)+12(y-2) - 5(2-3) = 0 c)9(x-4) + 4(y-2) - 5(2-3) - 0 d)16(x-4) + 64(y-2)+(2-3) -0 e) none of these
b. False 11- Matching (1 point each) For each one of the following solutions, determine whether it can be applied for: Water pollution, groundwater pollution, outdoor air pollution, indoor air pollution 1- Walk and use bicycles instead of cars 2- Store harmful liquids in aboveground tanks 3- Get old cars off the road 4- Maintain oil tankers in good shape...
10. In the following phase diagram for Zn-Cu Alloy. Label one eutectic, eutectoid and peritectic point and write down the reactions and all other relevant details. Also explain the eutectoid reaction i.e. why does one solid phase convert to two solid phases as the alloy cools down.....(5 points) a)The figure needs to be part of your answer sheet Composition (at%...
(1 point) Afactory's worker productivity is normally distributed. One worker produces an average of 73 units per day with a standard deviation of 23. Another worker produces at an average rate of 68 units per day with a standard deviation of 20. A. What is the probability that in a single day worker 1 will outproduce worker 2? Probability =...
Question 27 (1 point) When choosing an acid to make a buffer, choose one whose pKa is closest to the pH of the buffer. True False Question 28 (1 point) In General, metals can act as both lewis acids and arrhenius acids as well. True False False Question 25 (1 point) For reactions at equilibrium, the standard free gibbs energy...
10. In the following phase diagram for Zn-Cu Alloy. Label one eutectic, eutectoid and peritectic point and write down the reactions and all other relevant details. Also explain the eutectoid reaction i.e. why does one solid phase convert to two solid phases as the alloy cools down.....(5 points) a)The figure needs to be part of your answer sheet Composition (at%...
Question 6 Which one of the following should have the lowest boiling point? ОСНs ОСНОН O NaCl Ο HI