Numerade

Questions asked

BEST MATCH

Question 7 Problem 3 Part A. Use the devices below with the given operating conditions. The mass flow rate of the air is 2k(g)/(s). The mass flow rate of the refrigerant is 1k(g)/(s). If necessary, evaluate specific heats at 300 K . T_(1)=300K T_(3)=293K P_(4)=(7)/(b)ar T_(4)=26.72C x_(4)=0 P_(5)=(2)/(b)ar Determine the temperature of the refrigerant exiting the heat exchanger in Celsius.

View Answer

BEST MATCH

3. Please refer to the TTT phase diagram for eutectoid steel, where P= Pearlite, B=Bainite, and M=Martensite, and answer the following questions. (12%) (a) Describe each step of the heat treatment to acquire the microstructure present in Pearlite (4%) (b) Describe each step of the heat treatment to acquire the microstructure present in Bainite (4%) (c) Describe each step of the heat treatment to acquire the microstructure present in Martensite (4%) 900 800 700 600 500 400 300 200 100 0 0.1 1 10 102 103 104 105 106 Time (s) 14 38 40 42 52 57 66 Rockwell C hardness

View Answer

BEST MATCH

Cash, items that will normally be converted to cash, and items that will be used up within one year are called ____ Multiple Choice long-term liabilities plant and equipment current assets current liabilities

View Answer

BEST MATCH

Question 6 If marginal revenue exceeds marginal cost, profit maximizers should: O reduce output until they are equal. O increase output until they are equal. O increase output until profits are zero. O decrease output unless profits are zero. O maintain current output.

View Answer

BEST MATCH

Most synapses are what type? Action Galvanizing Chemical Electrical Most synapses are what type? Action Galvanizing Chemical Electrical

View Answer

BEST MATCH

Does the point $ (-9,10) $ satisfy the inequality $ 15 x+15 y \geq 15 $ ? yes no

View Answer

BEST MATCH

What volume of a 0.500MHCl solution is needed to neutralize each of the following: Part 1 of 2 20.0mL of a 0.300MNaOH solution. Be sure your answer has the correct number of significant digits

View Answer

BEST MATCH

Which of the following explains how can a yield curve be flat or downward sloping if a maturity risk premium exists? Group of answer choices Investors expect inflation to be higher in the future. Investors expect inflation to be lower in the future. Investors expect inflation to remain the same in the future. Investores expect the real rate of interest to rise in the future.

View Answer

BEST MATCH

Respond to each of the items using the following time series data. Period Demand 1 24 2 46 3 20 4 9 5 17 6 8 7 19 8 34 9 39 10 4 11 30 12 23 13 10 14 27 Click here for the Excel Data File b. Compute all possible forecasts using exponential smoothing with a smoothing coefficient (\alpha ) of 0.3. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) c. Compute all possible forecasts using exponential smoothing with a smoothing coefficient (\alpha ) of 0.7. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) d. Compute the MADs for each forecast model. (Round your answers to 3 decimal places.) e. Which forecast model would you choose? Why?

View Answer

BEST MATCH

At a certain temperature this reaction follows second-order kinetics with a rate constant of 34.2M$^{-1}$s$^{-1}$: 2Cl$_2$O$_5$ (g) $\rightarrow$ 2Cl$_2$(g) + 5O$_2$ (g) Suppose a vessel contains Cl$_2$O$_5$ at a concentration of 0.250M. Calculate how long it takes for the concentration of Cl$_2$O$_5$ to decrease to 0.0525M. You may assume no other reaction is important. Round your answer to 2 significant digits.

View Answer

michelle w.