GENERAL PHYSICS I (PHY 1030)
Prince George's Community College
HOMEWORK ASSIGNMENT ARE DUE AT 6:00 PM ON THE DUE DATE.
Note: To view the homework PDF files, you will need the Adobe Acrobat Reader,
available from http://www.adobe.com.
- Homework #1 (due 9/6/17)
- Homework #2 (due 9/13/17)
- Homework #3 (due 9/20/17)
- Homework #4 (due 10/11/17)
- Homework #5 (due 10/18/17)
- Homework #6 (due 10/25/17)
- Homework #7 (due 11/1/17)
- Homework #8 (due 11/20/17)
- Homework #9 (due 12/6/17)
- You may find the Julian day using either NASA
or the NASA JPL Web site.
There is also a simple computer program for computing the Julian day here.
- If you wish to check your final answer, go outside around dusk and see if Mars is where you predicted it would be.
For a more precise check, visit the NASA Jet Propulsion Laboratory HORIZONS System
- Change the Target Body to “Mars”
- Change the Observer Location to “Washington (USNO) DC”
- Change the Time Span to include Dec. 6, 2017, and set the calculation interval to, say, 1 hour.
- Under Table Settings, change “angle format” to “decimal degrees”
- Click the “Generate Ephemeris” button. Look for the line that reads “2017-Dec-06 10:00” and check the R.A. and DEC.
against your right ascension and declination. They won't match exactly, since JPL's calculation is more precise than yours, but it should be close.
- Homework 9 solution: Fortran Program - Program output
Dr. David G. Simpson:
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Page last updated: November 27, 2017.