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Fix - Astronomy:Journey to the Cosmic Frontier 4/e (Homework)

Chris Read

McGraw-Hill, section 1, Fall 2011

Instructor: Dr. Friendly

Current Score : 0 / 10

Due : Wednesday, September 21, 2011 07:00 AM EDT

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Question
Points
1 2 3 4 5 6
0/2 0/3 0/1 0/1 0/1 0/2
Total
0/10

  • Description

    Here are some textbook questions from Astronomy: Journey to the Cosmic Frontier 4/e by John D. Fix published by McGraw-Hill. Click here for a list of all of the questions coded in WebAssign.

  • Instructions

    This demo assignment allows many submissions and makes the answer key available after the first submission so you can see the correct answers. (Typically, the answer key is posted after the due date!)

Assignment Submission

For this assignment, the number of submissions for each answer box is counted independently. The number of submissions remaining changes only if you submit a new or changed answer.

1. –/2 points Notes Question: Fix4 1.FB.03.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
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0/2
 
Using the figure, find the altitude and azimuth of a star rising in the southwest.
altitude
Enter an exact number.
°
azimuth
Enter an exact number.
°

Your work in question(s) will also be submitted or saved.
2. –/3 points Notes Question: Fix4 2.CQ.02.
Question part
Points
Submissions
1 2 3
0/1 0/1 0/1
0/50 0/50 0/50
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0/3
 
Suppose an observer in the northern hemisphere determines that the diurnal motion of a star keeps it above the horizon for 17 hours. Is the star in the northern or southern hemisphere of the celestial sphere?
    


Does the star rise in the northeast or the southeast?
    


How much time elapses between the time the star rises and and the time it crosses the meridian?
Enter a number.
 hours
Your work in question(s) will also be submitted or saved.
3. –/1 points Notes Question: Fix4 3.P.03.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
What is the distance of an object that has an angular diameter of 390 seconds of arc and a linear diameter of 30 meters?
Enter a number.
 km
Your work in question(s) will also be submitted or saved.
4. –/1 points Notes Question: Fix4 5.P.11.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
What is the weight of a 39 kg person on the Earth's surface?
Enter a number.
 N
Your work in question(s) will also be submitted or saved.
5. –/1 points Notes Question: Fix4 6.FB.01.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
Use the figure to find the frequency of a radio wave with a wavelength of 103 m.
Enter an exact number.
 Hz

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6. –/2 points Notes Question: Fix4 6.P.05.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
What is the frequency of electromagnetic radiation that has a wavelength of 7.0 × 10-3 m?
Enter a number.
 Hz

In what part of the spectrum does this radiation occur?
    

Your work in question(s) will also be submitted or saved.
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