U08a1 Galaxies Review - Coursework Example

Only on StudentShare

Extract of sample
U08a1 Galaxies Review

The gravitational influence of mass contained within an orbit of a particular size determines the speed (and therefore period) of that orbit. So by measuring the period and size of the orbit, we can determine the mass inside the orbit. This is one method you can use to determine the mass of Jupiter (by looking at the orbits of its moons). Mathematically, the expression for the mass enclosed within an orbit of radius r is M = v2r/G, where G is Newton's gravitational constant and v is the orbital speed of a star at distance r. This concept works equally well for the orbits of stars and gas within spiral galaxies. By looking at the mass inside the orbit of stars or gas at different distances from the center of the galaxy, the mass of a galaxy as a function of radial distance from the center can be obtained from the rotation curve of the galaxy. 7. What are cosmic rays, and where are they thought to come from? Cosmic Rays are extremely high energy charged particles (usually protons) that travel the Universe at nearly the speed of light. Most galactic cosmic rays are probably accelerated in the blast waves of supernova remnants. This doesn't mean that the supernova explosion itself gets the particles up to these speeds. ...Show more

Summary

4. How can we use orbital properties to learn about the mass of the galaxy? What have we learned? If we know a star’s orbital period and orbital radius, we can use Newton’s version of Kepler’s third law to determine the mass of the galaxy, with a minor warning: We get only the mass of the galaxy within the orbit of the star we examine…
Author : halvorsonagusti
Save Your Time for More Important Things
Let us write or edit the coursework on your topic
"U08a1 Galaxies Review"
with a personal 20% discount.
Grab the best paper

Related Essays

Literature Review
Performance appraisals are supposed to encourage continuance and stability, not only of the workers, but also of managerial personnel from the frontline to top management. Because they are not just servomechanisms, their activities and movements have to be placed under reasonable, fair and just observation and evaluation.
5 pages (1250 words) Coursework
U09a1 Universe Review
Dark energy is not directly observed, but rather inferred from observations of gravitational interactions between astronomical objects, along with dark matter. Dark matter must exist to account for the gravity that holds galaxies together. Dark matter is also responsible for amplifying small fluctuations in the cosmic microwave background back in the early universe to create the large scale structure we observe in the universe today.
3 pages (750 words) Coursework
Review of Accounting Ethics
The information related to the Barclay’s Bank in LIBOR rate fixing scandal has led to the drawing attention to the ethical issues resulting in the breach of the ethical issues related to the financial institution over the last five years. Thus the corporate ethical breach has increased in the recent times due to the increase in the loopholes of the company’s ethics (International Risk, Crisis & Business Continuity management, 2011, p.1).
4 pages (1000 words) Research Paper
Article Review
But it is not happening and now people are so used to the concept of accounting irregularities that they do not care about them and therefore the stock prices just got immune to the historical effects of accounting and financial reporting blunders. The whole discussion signifies that people have accepted the presence of accounting frauds as a fundamental truth, due to this reason; they do not bother about them much.
6 pages (1500 words) Book Report/Review
Review of Accounting Ethics
However, many organizations still succeed in finding out the loopholes in the accounting standards and seek the room for manipulating the financial statements. There are various motives, which work behind such accounting breaches practice. For instance, the financial statements are reflected to the users of financial statements in such a way that the true picture of financial performance and position of the organization can be replaced with ready-made financial result in order to reflect the desired portrait of the organization.
4 pages (1000 words) Assignment
Article Review
One of the key suppositions is that both buyers and sellers via a series of indiscernible connections, helps to thrust market prices towards equilibrium price. Secondly, when government gets involved in the market, it impedes the market capacity to allocate goods and services efficiently.
3 pages (750 words) Article
Review an article
The firm participates in a venture along with the University of Oxford (Oxford Economics, Organizational Website, 2013). 1.2 Title The journal article under review has the title ‘An Indispensable Relationship: Economic Linkages between the UK and the rest of the European Union’ (Oxford Economics 2009, p.1) covering many aspects of the relationship between UK and EU in terms of economics, such as trade, labour, tourism and FDI.
5 pages (1250 words) Assignment
Corporate Governance Disclosure and the Financial Practices
The study intends to focus on the attributes of corporate governance reporting practices that are prevalent in the Saudi listed companies. The study would primarily accentuate on whether the Saudi Arabian companies comply with the established corporate governance disclosure norms while preparing their annual financial reports.
6 pages (1500 words) Essay
5 porter forces
The building porter forces under Michels Patisserie, a large cake business influence the potential gains in the company and they include: Rivals in a business context can exploit markets and even destroy it depending on the capacity to compete well.
2 pages (500 words) Essay
Export-Import Bank
The loan guarantee would be issued to cover the debt obligations in case the foreign buyer defaults. The cost of default would be passed through to the buyer. Such medium and long-term loan guarantees have continuously
2 pages (500 words) Case Study
Corporate governance
64). Since then, both state legislatures and Congress have carried on passing comprehensive laws aimed at regulating the securities industry. More recently, one of the most notable corporate scandals and economic disasters witnessed in the 21st century was that of
11 pages (2750 words) Essay
The Federal Reserve Bank
They decided to restrict it, but the Congress declined through a single vote, and it was renewed in 1811 (Paul, 1996). Congress later created a national bank in 1816, in light
6 pages (1500 words) Research Paper
Find out how much would it cost
to get a custom paper written by a pro under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email
YOUR PRIZE:
Apply my DISCOUNT