Questions asked
) Consider the following reaction between nitrogen trifluoride and hydrogen sulfide: 2NF3 (g) + 3H2S (g) ⇄ SF6 (g) + 2NH3 (g) + ¼ S8 (s) K = 5.2 x 1011 at 50 o C A flask at 50o C is filled with 0.34 bar NF3, 0.63 bar H2S, 0.18 bar SF6, 0.28 bar NH3 and excess sulfur (s). Determine the equilibrium partial pressures of nitrogen trifluoride (NF3) and ammonia at 50o C.
Solve for x0: v2 = v2 0 + 2a(x − x0)
According to "1619-1865: Cultural Deprivation and Slavery" in African American Art and Artists, what is described as having a "damaging and thwarting influence on the creativity of African Americans"? Group of answer choices war abolition slavery racism
Newborns are deficient in what fat-soluble vitamin which is important for proper blood clotting? O Vitamin K O Vitamin A O Vitamin C O Vitamin B
4 To investigate whether speed cameras have an impact on road safety, data was collected from several cities. The number of speed cameras in operation was recorded for each city, as well as the number of accidents over a 7 day period. Number of speed cameras ($x$) 7 15 20 3 16 17 28 17 24 25 20 5 16 25 15 19 Number of car accidents ($y$) 48 35 31 52 40 35 28 30 34 19 29 42 31 21 37 32 a Construct a scatter diagram to display the data. b Calculate $r$ for the data. c Describe the relationship between the number of speed cameras and the number of car accidents. d Find the equation of the regression line. e State and interpret the gradient and $y$-intercept of the regression line. f Estimate the number of car accidents in a city with 10 speed cameras.
In a highly competitive market for crude oil, if many new producers enter. What is likely to happen to the price and quantity of oil?
What is the likely effect on variable costs when a company shifts from labor-intensive to automated production processes? a) Variable costs increase b) Variable costs decrease c) No change in variable costs d) Variable costs become fixed costs
A boil can be defined as: (LO 9.1, 9.2, 9.3, 9.4, 9.5) Group of answer choices a pustule in the epidermis. a papule in the dermis. an infected nodule in the subcutaneous layer. an infected sweat gland in the dermis.
What money supply rule do the market monetarists propose? Group of answer choices Increase the money supply so that nominal GDP goes up by 5% a year. Increase the money supply by 3% a year. Increase the money supply so that prices stay the same (inflation = 0%) Replace government created money with private money created by banks.
IMPORTANT: You should provide all steps to the solution of each problem. Absence of those steps will reduce the grade. 1. (20 points). For the RLC circuit shown in Figure 1 determine value of $X_L$ which makes the total impedance magnitude $Z_T$ equal to 100 $\Omega$. Assume the coil's internal resistance $R_W = 0$. $V_S$ $10\angle0^\circ V$ R $X_L = ?$ $X_C$ 60 $\Omega$ 30 $\Omega$ Figure 1