A 30 m long pipe with an outside diameter of 75 mm is used to deliver steam at a rate of 2000 kg / hour. The vapor pressure is 198.53 kPa entering the pipe with a quality of 98%. The pipe needs to be given insulation with thermal conductivity of 0.2 W / (m K) so that the vapor quality only slightly decreases to 95%. The outer surface temperature of the insulation is assumed to be 25 ° C. Ignore the resistance conductive from the pipe material and considered no pressure drop in the pipe. a. Determine the enthalpy of incoming steam = kJ / kg.
b. Determine the enthalpy of steam coming out = kJ / kg.
c. Determine the change / heat loss of steam along the flow = watt.
d. Determine the minimum insulation thickness required = cm.

Applegate Inc. has developed a new shampoo with a distinctive fragrance. Before distributing it nationally, Applegate will test market the new product. The joint probability of a successful test market and high sales upon national distribution is 0.5. The joint probability of a successful test market and low sales nationally is 0.1. The joint probabilities of an unsuccessful test market and either high or low sales are both 0.2.

Construct a joint probability table and then answer the following questions.

As a part of the stimulus package ($93 billion) was paid out in the form of tax credits . Use the parameters given in the table below and the equation of IS Curve to answer the following questions:

Autonomous Consumption (C) = $1.3 trillion mpc = 0.6

Autonomous Investment (I) = $1.2 trillion c = 0.1

Government Spending (G) = $3.0 trillion d = 0.2

Tax Revenue (T) = $3.0 trillion x = 0.1

Net Exports (NX) =1.3 trillion financial frictions (f) = 1

a) Calculate the goods market equilibrium output ( Hint: Use equation for IS Curve)

b) Calculate the good market equilibrium if there is tax cut of $93 billion. Interpret your result and provide economic intuition to support your result.

You have the following buffer recipe and decide to make up some concentrated solutions first so that you won't have to weigh out dry ingredients, wait for them to dissolve, and correct the pH every time you make it. How much dry ingredients do you use for each of the following 4 stock solutions? Show you work and include units in your calculations. The Buffer Recipe is: 150 mM NaCl (formula weight 58.44 g) 10 mM Tris pH 8.0 (formula weight 121 g) 2 mM EDTA (formula weight 292 g) 0.2% bovine serum albumin Stock 1 of 4: 3 M NaCl, 100 mL ________ ?

In an imaginary pathway the intermediate E is a substrate of both enzyme 1 and enzyme 2, creating products F and G respectively. Intermediate E is present at 1.2 mM and the Km values for this substrate for enzymes 1 and 2 are 0.2 mM and 3 mM respectively.

Question: What would the effect of an increase in the concentration of E have on the relative populations of the products F and G?

1. Only the population of G would increase as enzyme 1 is already working a maximum.
2. Both F and G would increase to equal amounts of each product.
3. Both F and G would increase but the amount of F would be greater than G
4. You cannot predict the relative populations of F and G from the information given.

1. A coupon of very pure Gold and highly clean surface is exposed to an Argon Fluoride (ArF) excimer laser beam of wavelength 193.4±0.2 nm inside an ESCA (Electron Spectroscopy for Chemical Analysis) ultrahigh vacuum spectrometer. The coupon surface faces the entrance aperture of a hemispherical electrostatic energy analyzer and detector. The coupon and the analyzer entrance aperture are electrically connected together at ground potential (zero Volts). A fraction of the photo-emitted electrons enters the analyzer and their energy distribution is measured. a) (2 points) What is the energy of a photon in the ArF laser beam expressed in electron-Volts (eV)? b) (2 points) The highest energy of the detected electrons was 1.3±0.1 eV. What was the Work Function of this Gold surface in eV?

A large pharmaceutical company invites you to take an expert position in their new pot growing division. The division will be financed with $1 million in debt and $4 million in equity. The tax rate is 30% for all firms. The risk-free rate is 3% and market portfolio return is 9%. The yield on the division’s debt is 6%. The information on the relevant established pot growing companies is given below:

a) What is the average of the project betas of the pure play firms?

b) What is the beta of the new pot growing division of the pharmaceutical company?

c) What is the cost of equity of the division?

d) What is the division’s WACC?

1. Find the SSE for the given data and linear models, and indicate which model gives the better fit.

(2,4) (6,8) (8,12) (10,0)

1. Y = - 0.1 x + 7                        SSE = ________
2. Y = - 0.2 x + 6                        SSE = ________
3. The better fit is          Y = __________________

2. The following table shows the average price of a two-bedroom apartment in downtown New York City from 1994 to 2004 (x=0 represents 1994)

find:

x = ______              y = ______             xysum of = ______          

x2 = ______            y2 = _______       

Regression line: ___________________________

Correlation Coefficient (2 decimal places): ____________

Using the regression line, what would be the price for 2007? ________

Consider an economy that initially has a labor force of 2000 workers. Of these workers, 1900 are employed and each works 40 hours per week. 10 units of output are produced by each hour of labor. There are another 1500 adults in the economy who are not in the labor force.

A) What is the labor force participation rate?

The economy then enters a recession. Employment falls by 4%, and the number of hours per week worked by each employed worker falls by 2.5%. In addition, 0.2% of the labor force becomes discouraged at the prospect of finding a job and leaves the labor force.

B) After all of these changes, what is the new size of the labor force?

C) How many workers are unemployed now?

D) What is the new unemployment rate?

Tastee Mart sells Frostee Flakes. Demand for Frostee Flakes is 500 boxes per week. Tastee
Mart has a holding cost of 30 percent and incurs a fixed cost of $100 for each replenishment
order it places for Frostee Flakes. Given that cost is $2 per box of Frostee Flakes, i) how
much should Tastee Mart order in each replenishment lot? ii) If a trade promotion lowers the
price of Frostee Flakes to $1.80 (d=$0.2) for one month, how much should Tastee Mart order
given the short-term price reduction? iii) What will be the forward buy? iv) For how many
periods will the forward buy be enough? V) What will be the cycle inventory over these
periods?