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Various Applications of Physics

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1) Analyze the ways in which your life would change if transistors and microchips were not a part of our everyday lives.
2) Identify 10 objects in your home that use semiconductors. What other kinds of materials with special electrical properties are found in all of these 10 objects (list at least one per item)?
3) Many question the ability of the Department of Energy to do the good science needed to ensure that Yucca Mountain is suitable and developed appropriately. Detail the "question" that many have.
4) List three medical technologies that rely on the physics of elementary particles? What are the benefits of these noninvasive procedures?
5) Describe the movement of the Earth based upon the perceived change in positions of the stars.
6) How can we talk about the evolution of stars over billions of years when human beings have been observing stars for only a few thousand years?
7) Some advances in our knowledge have been made possible through better equipment, such as Hubble's discoveries using the 100-inch Hooker telescope at Mount Wilson. What other major discoveries in cosmology have relied on improvements in existing apparatus?
8) Was the formation of Earth unique, or was it similar to the processes which created all the planets in the solar system?
9) The temperature of Earth's core is estimated to be > 5,000 degrees Celsius. Is the core temperature of a planet like Jupiter hotter or colder? Why? Does the distance from the Sun affect the core temperature?
10) How does Clyde Tombaugh's work fit into the scientific method?
11) Describe the impact of adjustment to stress (strain) on the surface of the Earth.
12) If there were a serious (8 on the Richter scale) earthquake in California, how might it affect Washington? How might that affect Idaho and Wyoming?
13) On what tectonic plate do you live? How many adjacent plates are there? What kinds of boundaries do you find to the north, south, east, and west? In which direction are these plates moving?
14) Geology has been called an integrated science, because it calls on several scientific disciplines to help explain features and processes of Earth. Explain how geologists have used other sciences to answer the following questions:
a. How old is a piece of rock?
b. How is heat transferred from Earth's deep interior to the surface?
c. How does Earth's magnetic field change over time?
d. What is the structure of Earth's interior?
e. What is the topography of the seafloor?
15) Describe three places where you might find volcanic rocks forming today. Describe three places where you could watch sedimentary rocks forming today.
Where would you have to go to watch metamorphic rocks form?
16) How would our weather patterns be affected if Earth stopped rotating?
17) One of the problems of understanding the workings of ecosystems is that it is not possible to hold everything constant and change only one variable. Why is this true? What effects might this have on the interpretation of observations or experiments?
18) How might the law of unintended consequences play a role in the effects of legislation to limit greenhouse gas emissions? What industries will be affected? How might this affect your daily life?
19) What are the non-living components of an ecosystem or environment? How do the non-living components limit the living components?
20) How might changes in climate affect the relative distribution of organisms in an ecosystem? Provide an example.

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Solution Summary

This solution contains descriptive answers to a wide range of questions related to 'physics around us' along with examples.

Solution provided by:
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Recent Feedback
  • "Thankyou for the feedback. I have a few question though; With the first statistic about cost below... “According to Sigma-Aldrich catalog, cost of 1L octane is AUD $ 392.00, whereas the cost of 1L ethanol is AUD $196.00. Moreover, if ethanol is obtained from sugar industry as a by-product, it may cost even less. Source of oxygen is ambient atmosphere, so it costs nothing. So ethanol is much cheaper than petrol, in fact it is half-priced: AUD $ (392-196) = $ 196.” I didn't think it made sense because the cost of petrol per litre is normally a dollar something or even less than a dollar not a couple of hundred of dollars. For example, a statistic that I found in america was: "U.S. ethanol production costs are about $1.20 per gallon of ethanol, or $1.82 per gallon on a gasoline-equivalent basis." However, I was wondering whether you could find an Australian statistic. Also, you mentioned that H20 is not a greenhouse gas. However, in the combustion equations it is actually carbon dioxide and water vapour which are produced and they are both greenhouse gases. Finally, how do I calculate the energy efficiency of ethanol and petrol? "
  • "Thank you!"
  • "Didnt really answer my questions but gave me a start at least."
  • "Once again this is tremendous help I can't thank you enough for not only working the problem but explaining in detail how and why!! KR"
  • "Awesome thank you so much for the help!!!"
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