Questions
what is the relation between the reactive power changes and the voltage changes?

what is the relation between the reactive power changes and the voltage changes?

In: Electrical Engineering

The freezing cold spell at the beginning of 2010 not only increased demand for road salt,...

The freezing cold spell at the beginning of 2010 not only increased demand for road salt, but it increased demand for gas in the UK. Usage reached 454 cubic meters; the previous record was 449m set in January 2003. The National Grid which is responsible for energy in the UK issued several warnings in a matter of days that demand could outstrip supply and asked supplier so increase the supply. The National Grid also told major gas users, such as power plants, to reduce demand.

Big generators, such as E.On, have both gas-fired and coal-fired power stations and are able to choose between the two. In total, 27 large gas users were asked to switch - 12 in the East Midlands and 15 in the North West.

Analyze and answer the following questions:

  1. Illustrate the effect of the cold spell on the demand for gas using a demand curve diagram.
  2. Illustrate the effect of the National Grid instructing major gas users to reduce their demand.
  3. Analyze two other factors that you think influence demand for gas.
  4. Do you think demand for gas is price elastic or price inelastic? Explain your reasoning.

In: Economics

Prevalence of autism in children of Somali origin living in Stockholm: brief report of an at-risk...

Prevalence of autism in children of Somali origin living in Stockholm: brief report of an at-risk population. Based on a study by Barnevik-Olsson M, Gillberg C, Fernell E: This work was a follow-up study (birth years 1999-2003) of the prevalence of autism in children of Somali background living in the county of Stockholm, Sweden. In a previous study (birth years 1988-98), the prevalence of autism associated with learning disability was found to be three to four times higher among Somali children compared with other ethnicities in Stockholm. We examined all records of children of Somali background, born from 1999 to 2003, registered at the centre for schoolchildren with autism and learning disability. The census day was 31 December 2009. The sample prevalence of autism and PDDNOS (with learning disability) was 0.98% (18/1836) in the Somali group compared with the 0.21% in the group of children of non-Somali origin.

  • Do the data suggest a higher prevalence of autism in children of Somali background? (source: PMID:20964674 PubMed).
  • In UK the prevalence of autism is 1%. Do the Swedish data suggest a higher autism prevalence in children of Somali background than UK the prevalence?

In: Statistics and Probability

project about Opening a sports club or academy: Establishing a fitness club that provides various programs...

project about Opening a sports club or academy:
Establishing a fitness club that provides various programs and training for different age groups and genders. This business idea requires an amount of money to buy equipment and training machines, contract with a professional and academic team, rent a place or buy a private shop.

In: Economics

Suppose that the following data represents ages of all tenured faculty members in a certain academic...

Suppose that the following data represents ages of all tenured faculty members in a certain academic department, and we want to numerically describe the age distribution for this department only:

42, 39, 44, 50, 45, 42, 36, 47, 39, 42, 43, 47

What is the 3rd quartile?

In: Statistics and Probability

Answer the following questions : "What career path have you chosen? What made you choose this...

Answer the following questions : "What career path have you chosen? What made you choose this path?" in 300-500 words and "How have you used creative thinking/problem solving to help you accomplish your academic or personal goals?" in 500-750 words.

In: Accounting

Write a term paper on “Financial Globalization; Lessons learnt and emerging trends” (20 marks) Guidelines for...

Write a term paper on “Financial Globalization; Lessons learnt and emerging trends”

Guidelines for writing a term paper (academic style of writing)

  • Cite appropriately from books and journal articles (Use APA referencing Style) and not web pages
  • Avoid bullets and numbering of points; write in continuous prose

In: Finance

Utilizing the ideas parts of your proposed design Proposal and other associated assignments, consider the following...

Utilizing the ideas parts of your proposed design Proposal and other associated assignments, consider the following scenario: An academic researcher wants to conduct a study on the distribution of various medications over the past 10 years.

1. what steps are required before the researcher can obtain any data?

In: Nursing

Your essay should focus on the challenges facing business when making and implementing decisions. The effectiveness...

Your essay should focus on the challenges facing business when making and implementing decisions. The effectiveness of one or two key management accounting techniques and concepts should feature prominently in your work, as should academic and practical evidence to support or challenge how successfully the techniques achieve their aims.

In: Accounting

ESSAY: This essay has to be 2 pages and writen in font size 12 . and...

ESSAY: This essay has to be 2 pages and writen in font size 12

. and also another page is a brief outline and sources citation

Topic; how integrity and individual decisions can affect other people, this topic can be refered from Sport area, Academic, Work experiences, Management

In: Psychology