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

James Finch

Astronomy, section 1, Fall 2010

Instructor: Dr. Friendly

Current Score: 0/10

Due: Friday, November 19, 2010 08:00 EST

About this Assignment

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!)



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 northwest.
altitude
Enter an exact number.
°
azimuth
Enter an exact number.
°


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
Total
0/3
 
Suppose an observer in the northern hemisphere determines that the diurnal motion of a star keeps it above the horizon for 18 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

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 240 seconds of arc and a linear diameter of 30 meters?
Enter a number.
 km

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 79 kg person on the Earth's surface?
Enter a number.
 N

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 x-ray with a wavelength of 10-10 m.
Enter an exact number.
 Hz


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 2.0 × 10-14 m?
Enter a number.
 Hz

In what part of the spectrum does this radiation occur?
    


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