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Shawl et al - Discovering Astronomy 6/e (Homework)

James Finch

Astronomy, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 1 / 9

Due : Monday, January 28, 2030 00:00 EST

Last Saved : n/a Saving...  ()

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Question
Points
1 2 3 4 5 6 7 8 9
1/1 –/1 –/1 –/1 0/1 –/1 –/1 –/1 –/1
Total
1/9 (11.1%)

  • Instructions

    In this assignment you will see several of the questions found in Discovering Astronomy 6th edition by S. Shawl, G. Byrd, S Deustua, and M. Lopresto. WebAssign has integrated the test bank questions associated with the textbook, which were collaboratively written by the authors of Discovering Astronomy. The questions span from multiple choice and true/false questions to those requiring mathematical reasoning.

    View the complete list of WebAssign questions available for this textbook. This demo assignment allows many submissions and allows you to try another version of the same question for practice wherever the problem has randomized values.

Assignment Submission

For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

Assignment Scoring

Your last submission is used for your score.

1. 1/1 points  |  Previous Answers ShawlAstro6 13.P.001. My Notes
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What does the notation
12
 6
C
 tells us?
     Correct: Your answer is correct.
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2. –/1 points ShawlAstro6 13.P.007. My Notes
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How much more energy does each unit area of a 25,000 K star radiate than a 5,000 K star?
    
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3. –/1 points ShawlAstro6 13.P.014. My Notes
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How does the diameter of a typical atom compare to the diameter of a  typical atomic nucleus?
    
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4. –/1 points ShawlAstro6 13.P.018. My Notes
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What type of spectrum would you expect to see if you were examining a Wolf-Rayet star? (This is a star having a high temperature and an extensive stellar wind, which blows material away from the star.)
    
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5. 0/1 points  |  Previous Answers ShawlAstro6 13.P.028. My Notes
Question Part
Points
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1
0/1
3/50
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0/1
 
What gas do we see when we examine the spectrum of an incandescent bulb?
     Incorrect: Your answer is incorrect.
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6. –/1 points ShawlAstro6 13.P.049. My Notes
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Suppose you have a detector that captures 1000 photons with a wavelength of 500 Å each. How many photons would you need to collect in order to have the same total amount of energy if the photons had a wavelength of 10 Å?
    
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7. –/1 points ShawlAstro6 13.P.062. My Notes
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1
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Assume that the figure above represents a schematic energy level diagram for hydrogen. Which transition would involve the Balmer photon of shortest wavelength?
    
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8. –/1 points ShawlAstro6 13.P.069. My Notes
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In the figure below, dark lines or shading represent the absence of light. For what physical circumstance would you expect to see a spectrum like A?
    
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9. –/1 points ShawlAstro6 13.P.075. My Notes
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In the figure above, three spectrographs are pointed in the directions indicated by the arrows. The gas cloud is transparent, not opaque. Which response below best describes what spectrograph 1 will see?
    
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