a) Describe, using a schematic/diagram of your own creation, how an electron microscope changes from low magnification to high magnification.

b) Why is it preferable to image a conductive surface in an SEM?

c) Is the conductivity of the sample as critical in a TEM as it is in an SEM? Why or why not?

The government should never use fiscal policy to combat business cycle fluctuations coming from changes in money demand if it also wishes to keep longer term movements in the price level to a minimum. Is this claim true, false or uncertain? Explain by using words and a single AS/AD diagram.

Exhibit 1: Table compares changes in key financial KPIs between 2008 and 2009, as follows:

Data gathered from table used to answer problem below:

1) Inventory growth rate = COGS/average inventory= 38.9/6.8= 5.72

average inventory = opening inventory + Closing inventory/2 = 4.9+8.7/2 = 6.8

2) Sales growth = CY sales - Py sales/py sales *100 = 38.9 - 29/29 * 100 = 34.1%

3) Net Working capital = Current liabilties - current assets = 6.7 - 22.2 = (15.5)

4) Days working capital = Avg working capital/sales revenue * 365 = 15.5/86.3*365 = 65.5 days

5) DIO= average inventory/COGS*365 = 6.8/38.9*365= 63.8 days

6) DSO= avg account recievable/sales*365 = 14.8 days

7) DPO= avg account payable/cogs * 365 = 2.075/38.9 * 365 = 19.4 days

8) CCC = DSO+DIO-DPO= 14.8+63.8-19.4= 59.2

Using the supporting data, provide an analysis of the current situation at SG. Identify the key symptoms and provide clear problem statements to identify the root causes that result in the symptoms and poor performance. Please use the course strategic framework tools, concepts, and Operations Rules for your analysis.

Exhibit 1: Table compares changes in key financial KPIs between 2008 and 2009, as follows:

Data gathered from table used to answer problem below:

1) Inventory growth rate = COGS/average inventory= 38.9/6.8= 5.72

average inventory = opening inventory + Closing inventory/2 = 4.9+8.7/2 = 6.8

2) Sales growth = CY sales - Py sales/py sales *100 = 38.9 - 29/29 * 100 = 34.1%

3) Net Working capital = Current liabilties - current assets = 6.7 - 22.2 = (15.5)

4) Days working capital = Avg working capital/sales revenue * 365 = 15.5/86.3*365 = 65.5 days

5) DIO= average inventory/COGS*365 = 6.8/38.9*365= 63.8 days

6) DSO= avg account recievable/sales*365 = 14.8 days

7) DPO= avg account payable/cogs * 365 = 2.075/38.9 * 365 = 19.4 days

8) CCC = DSO+DIO-DPO= 14.8+63.8-19.4= 59.2

Using the supporting data, provide an analysis of the current situation at SG. Identify the key symptoms and provide clear problem statements to identify the root causes that result in the symptoms and poor performance. Please use the course strategic framework tools, concepts, and Operations Rules for your analysis.

Strickler Technology is considering changes in its working capital policies to improve its cash flow cycle. Strickler's sales last year were $3,440,000 (all on credit), and its net profit margin was 4%. Its inventory turnover was 6.0 times during the year, and its DSO was 42 days. Its annual cost of goods sold was $1,800,000. The firm had fixed assets totaling $540,000. Strickler's payables deferral period is 46 days. Assume a 365-day year. Do not round intermediate calculations.

1. Calculate Strickler's cash conversion cycle. Do not round intermediate calculations. Round your answer to two decimal places.

     days

2. Assuming Strickler holds negligible amounts of cash and marketable securities, calculate its total assets turnover and ROA. Do not round intermediate calculations. Round your answers to two decimal places.

   Total assets turnover:  ×

   ROA:   %

3. Suppose Strickler's managers believe the annual inventory turnover can be raised to 8 times without affecting sale or profit margins. What would Strickler's cash conversion cycle, total assets turnover, and ROA have been if the inventory turnover had been 8 for the year? Do not round intermediate calculations. Round your answers to two decimal places.

   Cash conversion cycle:   days

   Total assets turnover:    ×

   ROA:    %

Rework problem 13 from section 3.2 of your text, involving Example 3.9, with the changes described below. Suppose you have a bag containing one black ball numbered 1, six white balls numbered 2, 3, 4, 5, 6, 7, and seven red balls numbered 8, 9, 10, 11, 12, 13, 14. Fill each of the following blanks with a Y for yes or an N for no: (1) Is the event "drawing a black ball" independent from the event "drawing an even-numbered ball"? (2) Is the event "drawing a black ball" independent from the event "drawing an odd-numbered ball"? (3) Is the event "drawing a white ball" independent from the event "drawing an even-numbered ball"? (4) Is the event "drawing a white ball" independent from the event "drawing an odd-numbered ball"? (5) Is the event "drawing a red ball" independent from the event "drawing an even-numbered ball"? (6) Is the event "drawing a red ball" independent from the event "drawing an odd-numbered ball"?

Consider further improvements to your transformer. What additional changes might you make to increase the energy transfer from one coil to the other?

Use geometry considerations only--no added materials other than different sized coils.

1. A scientist stimulates an axon two times within fifteen milliseconds. When measuring voltage changes on the other end of the axon, they only see one action potential. Why does this happen?

a. The membrane does not have enough time to return to its resting potential, and so no action potential can be initiated.

b. Voltage-gated Na+ channels are still inactivated after the first action potential, and so a second action potential can’t be initiated.

c. Na+/K+ pumps are actively pumping Na+ out of the axon, which prevents the axon from reaching threshold.

d. Voltage-gated K+ channels are opposing the flow of current from the electrode, preventing the axon from reaching threshold.

Extract 1 Oil price changes

“The oil price drop since June 2014 was due to supply and demand factors. USA oil production doubled between 2009 and 2015. Countries such as Algeria, Saudi Arabia and Nigeria used to export oil to the USA but now the USA produces more than enough oil to meet its own needs. Furthermore, in 2014 OPEC producers decided not to reduce production and as a consequence by August 2015 the oil price decreased 40%.

Oil is a non-renewable resource and reserves of oil are finite. However, oil producing countries are massively extracting oil. Investment in renewable resources and in new solar and wind power capacity is being cut as subsidising these activities has become a burden to governments.

Currently, the demand for petrol and diesel is decreasing. Part of the reason for this decrease is the weak economic growth in much of Europe and also in developing countries, causing real incomes to grow slowly. Furthermore, new cars and new trucks are becoming more energy efficient with lower requirement for diesel and petrol.

New cars now burn less fuel causing less air pollution. This contributes to reduce the pressure on healthcare. For example, those with respiratory diseases are less likely to need treatment. Nevertheless, many people in developing countries drive old cars that are less fuel efficient. Also, increased numbers of drivers may offset the gains in fuel efficiency.”

1. Consider the factors that have contributed to the change of oil price according to Extract 1, and explain how they have affected the demand and supply of oil, and the final impact on oil price. No need of drawing graphs.