Numerade

Questions asked

BEST MATCH

The Rutherford model of the atom can best be described as A uniform distribution of positive charge with discrete negative charges spread throughout. A compact concentration of positive charge and nearly all the mass concentrated in a minute nucleus. A compact concentration of negative charge and nearly all the mass concentrated in a minute nucleus. An electrically neutral object with a uniform distribution of negative charge with discrete positive charges distributed throughout.

View Answer

BEST MATCH

A rise in the price of engines decreases the supply of cars. True False

View Answer

BEST MATCH

An acid reacts with carbonates to form which of the following products? a salt, water, and carbon dioxide a salt and hydrogen gas a salt and water an acid and a salt

View Answer

BEST MATCH

which of the following characterize the arts of the classical era: a. symmetry and proportion

View Answer

BEST MATCH

You are holding a stock that has a beta of 2.31 and is currently in equilibrium. The required return on the stock is 24.87%, and the return on a risk-free asset is 5.0%. What would be the return on the stock if the stock's beta increased to 2.98 while the risk-free rate and expected market return remained unchanged? Group of answer choices 39.26% 45.53% 24.87% 30.63% 27.29%

View Answer

BEST MATCH

3. Governments around the world are purchasing in advance Covid-19 vaccine doses. These purchases are in addition to the purchases of influenza vaccine doses. 3.1. Represent graphically the market for vaccines. Show the elements of the market and the equilibrium point. (2 marks) 3.2. Explain and show graphically the effect of government purchases of Covid-19 vaccine doses in the market for vaccines. How does the new market equilibrium look like? (2 marks) 3.3. What is the problem with allowing only the market allocate Covid-19 vaccine doses in the context of the pandemic (Hint: consider what you found in 3.2.)? (2 marks)

View Answer

BEST MATCH

Suppose that the editors of Time and Newsweek are trying to decide upon their cover story for the week. There were two major news developments: The leaking of a clandestine CIA officer's identify and a terrorist suicide bombing. It is important that the news weeklies not choose the same cover story since some readers will by only one magazine when they might otherwise buy both. The choice of cover story depends on newsstand sales. The editors believe that 20 percent of newsstand buyers are interested in the CIA story, while 80 percent are interested in the terrorist bombing. If both news weeklies run the same cover story, they will evenly share the market, but if they run different cover stories, each will get that share of the market. This static game is depicted in the following figure. Payoff Matrix: (row, column)=(Time, Newsweek) CIA Terrorism CIA (10,10) (20,80) Terrorism (80, 20) (40,40) 1. Does Time have the dominate strategy? 2. Does Newsweek have the dominate strategy? 3. What is the Nash equilibrium for this game?

View Answer

BEST MATCH

If w is fixed at w, then F = where c = V2 W2'1 2v/w-11-y1/2-1, 0y1 Ofy|w = elsewhere 2v2/w-1e-2y/v1 y0 yw. Y>0 y1/2-1e-w1y/22y0 Of(y|w) y<0 Of(y|w) 0 elsewhere

View Answer

BEST MATCH

A 13.7 gram sample of krypton gas has a volume of 953 milliliters at a pressure of 3.12 atm. The temperature of the Kr gas sample is °C.

View Answer

BEST MATCH

Based on the statements: 1) Draw the concentration profiles for the system. 2) The individual and total resistance 3) Total percent resistance of two films 4) The membrane thickness, L and concentration of Mg at dilute solution, C1 5) Mg concentration at membrane interface, C2 is and total area for a transfer of 0.01 kgmol Mg/h A thin-film composite membrane is designed to recover magnesium (Mg) from a dilute solution. The distribution coefficient, k' and the diffusivity coefficient, DAs of the membrane are 1.5 and 7.0 x 10^-11 m^2/s respectively. The magnesium (Mg) diffuses through the membrane, and its concentration on the other side is c = 0.50 x 10^-2 kgmol/m. The mass transfer coefficient kc is large and can be considered as infinite, and kc = 2.02 x 10^- m/s. The flux value at steady state is given as NA = 7.458 x 10^- kgmol/sm^2 and the permeability in solids, Pm = 3.5 x 10^- m/s.

View Answer

john d.