Titanium metal requires a photon with a minimum energy of 6 .9 4 * 1 0 - 1 9 J to emit electrons. ( a ) What is the minimum frequency of light necessary to emit electrons from titanium via the photoelectric effect? ( b ) What is the wavelength of this light? ( c ) Is it possible to eject electrons from titanium metal using visible light? ( d ) If titanium is irradiated with light of wavelength 233 nm, what is the maximum possible kinetic energy of the emitted electrons? ( d ) What is the maxi - mum number of electrons that can be freed by a burst of light whose total energy is 2 . 0 0 m J ?

list 4 factors that 1 should consider when segmenting a market for a courier service.

1. Suppose that a competitive firm’s marginal cost function is given by MC(q) = 4 + aq, where a > 0 and the market price is 16.

a) What is the firm’s profit-maximizing level of output when a = 4?

b) Suppose the firm’s fixed costs increase and the value of a decreases. How will this affect the firm’s profit-maximizing level of output?

c) Suppose the firm’s producer surplus at its profit-maximizing level of output is 36. What is the value of a in the firm’s marginal cost function?

d) Suppose now that the average variable cost of the firm is given by AVC(q) = 4 + q and that the firm’s fixed costs are known to be $8. Write down an expression for the firm’s total cost function. That is C(q) =?

e) If the firm decides not to produce in the short with the cost functions described in part d), what must be true about the prevailing market price?

SET A

1.) What is Market Failure (define). Name the 4 causes of Market Failure and explain each cause of market failure.

2.)What is Opportunity Cost (Define and Explain) ? Give an example of an Opportunity Cost.

3.) What is a Demand Schedule & Demand Curve (Define and Explain)? What does a Demand Schedule and Demand Curve tell (State) in economics?

4.) What is Total Revenue and How is it calculated (formula)?

5.) What is a Production Function (Define and give an example of a production function)?

6.) What is Marginal Cost (definition), How is it Calculated "Formula" (Give an Example of example of how Marginal Cost is calculated).

Using the particle in the 1-D box model, estimate the first 4 energy levels of the π-network in hexatriene, C6H8 (H2C=CH–CH=CH–CH=CH2). To calculate the box length, assume that the molecule is linear and use the values 135 and 154 pm for the C=C and C–C bonds, respectively. Only 2 out of the 6 ‘π-electrons’ of the 6 C-atoms can occupy each energy level (Pauli exclusion principle). Ignore the rest of the electrons (forming the core and the ??-bonding network). Sketch and label an energy level diagram showing the occupied levels and the first unoccupied one. What is the wavelength of the photon required to induce the HOMO-LUMO transition? Derive the expression for the photon’s wavelength symbolically! How does your numeric result compare with the experimental value of 240 nm?

1)    A lawn and garden retailer operates 4 stores in the DFW Metroplex. One of its most popular items is a lawn tractor. Weekly customer demand is distributed N(10,5²) at each store. Each store replenishes its stock to 15 lawn tractors at the start of each week. Note: Assume that weekly demands at each store are independent.

a)   Consider just one store. What is the probability of a stockout in that store?

b)   What is the probability of a stockout in at least two of the four stores?

c)   Suppose that the four stores decide to pool their stock. Specifically, they decide to pool their weekly allocations (4 X 15 = 60) in a centrally located warehouse and draw from it as needed to satisfy their demand. How often will a store experience a stockout now?

Part B :

Answer any 4 of the following questions.

Exercise 1 -

A firm generated net income of $862. The depreciation expense was $47 and dividends were paid in the amount of $25. Accounts payables decreased by $13, accounts receivables increased by $28, inventory decreased by $14, and net fixed assets decreased by $8. There was no interest expense. What is the net cash flow from operating activity? Explain the usefulness of the net cash flow from operating activities in decision making.

Exercise 2:

Following information is extracted from the books of Brox Ltd: a. Current Accounts  2017: CA = 18,900; CL = 11,300  2016: CA = 14,700; CL = 11,600 b. Fixed Assets and Depreciation  2017: NFA = 88,100; 2016: NFA = 85,700  Depreciation Expense = 1500 c. Long-term Debt and Equity (R.E. not given)  2017: LTD = 17,000; Common stock & APIC = 1,400  2016: LTD = 15,650; Common stock & APIC = 1,400 d. Income Statement  EBIT = 16,000; Taxes = 1400  Interest Expense = 1,240; Dividends = 1,700 Required: i. Compute the cash flow from asset for Brox Ltd. ii. Comment on usefulness of cash flow from asset in financial decision making.

Exercise 3 :

A firm has sales of $2,190, net income of $174, net fixed assets of $1,600, and current assets of $720. The firm has $310 in inventory. What is the common-size statement value of inventory? Also explain the implications of common size analysis.

Exercise 4 :

Following financial information is related to Glow Corporation and Blue Corporation: Glow Corporation Blue Corporation 2001 2000 2001 2000 Current ratios 1.16 .95 2.25 2.17 Working capital $11 ($2) $30 $28 A/R turnover 31.7 times 45 times 30 times 30 times Inventory Turnover 16.6 times 22.5 times 15 times 15 times Asset turnover 2.4 times 3.2 times 3.6 times 3.8 times Total debt to total assets 86.9% 81.7% 14.2% 15.4% Sh. Equity to total assets 13.1% 18.3% 85.8% 84.6% Gross margin ratio 30% 33% 25% 25% Return on sales 10% 11.9% 10% 10% Return on assets 24.5% 38.5% 35.5% 38.5% Return on equity 186.3% 210.5% 41.4$ 45.5% Required: Conduct financial analyses of the two companies on the basis of above data and deduct which is performing better and why?

Exercise 5:

a. A stock is expected to pay a year-end dividend of $4.00. The dividend is expected to grow at a rate of 7% a year forever. If the company is in equilibrium and its expected and required rate of return is 10%, what is the price of stock? Show all calculations. b. Zello’s preferred stock pays a dividend of $2.00 per months. If the price of the stock is $85.00, what is its nominal (not effective) annual rate of return? Show all calculations. c. Contrast between preferred and common stock. Discuss which one of these two investments is suitable for investors.

Question 1 4 pts

The following account appears on the income statement of a merchandiser:

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Question 2 4 pts

Which of the following would we credit to record the purchase of merchandise inventory on account if the company uses a perpetual inventory system?

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Question 3 4 pts

On April 1, our company purchases $1,000 worth of merchandise inventory on credit with the terms 2/10, n/30. What is the amount we would credit to cash if we pay this invoice on April 20?

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Question 4 4 pts

Under FOB shipping, title to merchandise passes to the purchaser when:

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Question 5 4 pts

Our company sold merchandise on account with a cost of $700 for $1,000. Our company uses a perpetual inventory system. What account and amount would we credit to record the cost of the merchandise sold?

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Question 6 4 pts

Our company sold merchandise on account with a cost of $700 for $1,000. Our company uses a perpetual inventory system. What account and amount would we debit to record the cost of the merchandise sold?

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Question 7 4 pts

Which of the following appears on a multi-step income statement but not on a single-step income statement?

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Question 8 4 pts

What is the recommended inventory method for a company dealing in unique, high-priced inventory items?

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Question 9 4 pts

The two main inventory accounting systems are:

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Question 10 4 pts

A company purchased 10 units for $5 on January 3. It purchased 10 units for $7 each on February 28. It sold 10 units on March 1. If the company uses the first in, first out (FIFO) inventory costing method, what is the dollar amount for ending inventory on the December 31 balance sheet, assuming that the company uses a perpetual inventory system?

PLEASE ANSWER ALL THE QUESTIONS ...ITS FOR THE EXAM THANK YOU

Balanced Equation:
2C8H18 + 25O2 --> 16CO2 + 18H20
1, If 4 moles of octane, C8H18, were burned how many moles of oxygen were also used?
a. 30 moles
b. 38 moles
c 50 moles
d 25 moles
2. If you had 50 moles of each reactant present in a flask, which one would be the limiting reactant?
a. C4H10
b. CO2
c. O2
d. H20

e. None, they would tie