A capacitor filled by dielectric slab (k=4.5) is connected to a 12.0V battery and charged up. The capacitor is then disconnected from the battery and the slab is removed.

a) Find the amount by which the potential difference across the plates changes.

b) Find the difference between the new stored energy and the original amount and specify whether this energy difference is an increase or decrease.

1. An air conditioner using R134a as the working fluid operates on an ideal vapour compression system between 0.3 and 0.8 MPa. If the specified capacity for air conditioning is 20 kW. What would be its capacity for food freezing for which the evaporator temperature -20^oC. Show the cycle on a PH diagram and explain the effect of the changes to the compressor and condenser respectively.

Provide a description of a recent waiting line system that you encountered. Was it a single channel or multi-channel? Why? Do you feel that the operating characteristics would indicate an efficient operation? Why? What changes would you suggest that they make? If you are suggesting that they add servers, do you feel that the added service will outweigh the costs? Why?

1. A trapezoid-shaped potato with base lengths of 1.5 cm and 2.0 cm respectively and a height/thickness of 0.5 cm was dried at a temperature of 70 ^oC in a convective oven for 24 h, if the surface temperature of the potato remained at 65 ^oC throughout the drying operation, describe the different changes that occurs during the constant and falling rate periods.

• Central California winemaking industry

• Analyze how the economic concentration in the area you chose influenced the supply chain.
• Analyze which of the 4 factors of production were the most and least important in determining the economic concentration of the area you chose.
• Predict changes you anticipate for the area of economic concentration you chose. Support your predictions.

Define perimenopause, surgical menopause, stress menopause, and postmenopause.

What are the signs of menopause?

What other life changes may influence a women's experience during menopause?

Describe women at the highest risk for osteoporosis.

Describe the traditional and alternative therapies for the conditions associated with menopause.

Design a health, nutrition, and exercise program for middle-aged and older adults.

what was the “Market Revolution”? What was the driving force behind it?

Topics that you might want to include are

• The growth of the cotton sector
• “Revolutions” in transportation and communication
• Changes in agriculture (broadly conceived)
• The impact of the legal system, especially the Supreme Court, on the Market Revolution

Other developments you think important that flowed from the Market Revolution

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Suppose you are a senior manager of a multinational company. The organizations growth should be maintained at its best. The prevailing situation of the country (COVID 19) could have a significant impact on your organization.
Describe your role as a change agent to make necessary changes to your workplace environment while maintaining the profitability / Sustainability. (800 words)

1. You are a manager in a Retail apparel firm operating in six cities in GCC area. You have been thinking of expanding your business to other countries. Identify one country where you want to expand your business and discuss the changes that you would like to have focusing on creativity and innovation in the newly identified location.

5. Explain what percent agreement is, why it’s useful, and why calculations of it usually ignore agreement of negative results.

6. What is the positive predictive value of a diagnostic test? How is the PPV affected by the prevalence of the condition the test is for?
7. What is meant by the term overdiagnosis? What kind of changes have meant that it is becoming an increasing problem?