Consider 0.8 kg of N2 at 300 K, 1 bar contained in a
rigid tank connected by a valve to another rigid tank holding 0.3
kg of CO2 at 300 K, 1 bar. The valve is opened and gases
are allowed to mix, achieving an equilibrium state at 290 K.
Determine:
(a) the volume of each tank, in m3.
(b) the final pressure, in bar.
(c) the magnitude of the heat transfer to or from the gases during
the process, in kJ.
(d) the entropy change of each gas and of the overall system, in
kJ/K.
In: Mechanical Engineering
This is the full question
Consider a‘‘duel’’ between two players. Let’s call these players H and D.Now,we have historical information on each because this is not their first duel. H will kill at long range with probability 0.3 and at short range with probability 0.8. D will kill at long range with probability 0.4 and at short range with probability 0.6. Let’s consider a system that awards 10 points for a kill for each player. Build a payoff matrix by computing the expected values as the payoff for each player. Solve the game.
In: Advanced Math
The price elasticity of demand for ambulatory mental health services appears to be about - 0.8, and the price elasticity for general ambulatory medical services appears to be about -0.3. How much would spending increase for each type of care if copays were cut from $40 to $25? *Hint: Need to find out how much the copay decreased by in percentage and that will give you the percentage change in price to plug into your elasticity formula. (PLEASE SHOW WORK ON HOW YOU GOT THE ANSWER, THANK YOU).
In: Economics
Two long concentrie cylinders have diameters of 5 and 10
cm, respectively. The inside cylinder is at 900 C and the outer
cylinder is at 100-C. The inside and outside emisivities are 0.8
and 0.4, respectively. Calculate:
a) the percent reduction in heat transfer if a cylindrical radiation
shield having a diameter of 6 cm and emisivity af 0.3 is placed
between the two cylinders.
b)discuss the effect of decreasing the shield diameter on the
percent reduction in heat transfer
c)draw the network circuit
cxraw the network circuit
In: Mechanical Engineering
6 In the late 1930s and early 1940s, Joe Louis handily defeated a series of opponents who came to be known as the “Bum of the Month Club.” Use what you know about rank-order tournaments to explain how this came about.
In: Economics
Assume CAPM is correct (the market is the tangency portfolio), and all securities are priced correctly. a), b) Fill in the blanks.
Security Expected Variance Standard Correlation BETA
Returns Deviation (with Market)
Market 0.08 ________ 0.40 ________ ________
Risk-free 0.02 ________ _______ 0.0 ________
Stock D ________ ________ 0.50 ________ 0.8
Stock E ________ ________ 1.60 0.40 ________
c) Suppose a well known fund manager invites you to invest in a special fund that promises expected returns of 0.06, with a BETA of 0.2. How would you approach the idea?
In: Finance
A random sample of 9 automobiles of a particular model has a mean of 32 mpg and a standard deviation of 10 mpg. Assume gas mileages are normally distributed. Use this information to compute a 95% confidence interval for the mean miles per gallon obtained by all automobiles of this type.
Round your confidence interval values to the nearest whole number (Do NOT use any decimals in your answer).
The left endpoint of the confidence interval is , and the right endpoint is .
In: Statistics and Probability
A meteorologist who sampled 13 randomly selected thunderstorms found that the average speed at which they traveled across a certain state was 1.7 miles per hour. The standard deviation of the sample was 1.7 mph. Find the 99% confidence interval of the mean. Do not round the t value from the table. Round the t-interval to one decimal place, example 1.2 < μ < 3.4
T value from the table for the formula:
T-interval: < μ <
In: Statistics and Probability
How many picograms are in 5.59 × 10–11 grams?
How many micrometers are in 6.36 × 10–5 meters?
How many kilovolts are in 3.48 × 105 volts?
How many nanoliters are in 1.58 × 10–10 liters?
Question 2
While driving your rental car on your trip to Europe, you find that you are getting 8.1 kilometers per liter of gasoline. What does this correspond to in miles per gallon?
In: Chemistry
What data is needed from each traffic analysis zone to forecast future volumes?
Maximum Service Flow Rate is determined under…
In: Civil Engineering