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TABLE B: Converting smaller angular units into degrees Divide arc-seconds by 60 to get arc-minutes, or divide arc-seconds by 3600 to get degrees. Divide arc-minutes by 60 to get degrees. 12 arc-minutes = 12 arc-minutes ÷ 60 arc-minutes/degree 10 arc-seconds = 10 arc-seconds +3600 arc-seconds/degree = 0.20 (2 sig figs) O 0.00278° =~.003°

TABLE B: Converting smaller angular units into degrees Divide arc-seconds by 60 to get arc-minutes, or divide arc-seconds by 3600 to get degrees. Divide arc-minutes by 60 to get degrees. 12 arc-minutes = 12 arc-minutes ÷ 60 arc-minutes/degree 10 arc-seconds = 10 arc-seconds +3600 arc-seconds/degree = 0.20 (2 sig figs) O 0.00278° =~.003°

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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TABLE B: Converting smaller angular units into degrees Divide arc-seconds by 60 to get arc-minutes, or divide arc-seconds by 3600 to get degrees. Divide arc-minutes by 60 to get degrees. 12 arc-minutes = 12 arc-minutes 60 arc-minutes/degree 10 arc-seconds = 10 arc-seconds - 3600 arc-seconds/degree = 0.20 (2 sig figs) 0.00278° =~.003°
Transcribed Image Text:TABLE B: Converting smaller angular units into degrees Divide arc-seconds by 60 to get arc-minutes, or divide arc-seconds by 3600 to get degrees. Divide arc-minutes by 60 to get degrees. 12 arc-minutes = 12 arc-minutes 60 arc-minutes/degree 10 arc-seconds = 10 arc-seconds - 3600 arc-seconds/degree = 0.20 (2 sig figs) 0.00278° =~.003°
3. With a small telescope, you notice a crater on the moon that spans an angle of about 1 arc-minute. Suppose the moon that night was about 225,000 miles away. What would be the actual diameter of the crater, in miles? Before you can use equation (3) to determine the crater diameter, you must convert its angular size into degrees. (See the examples in Table B.) Angle of 1 arc-minute telescope Distance to the Moon = 225,000 miles Answer: Lunar Crater How many significant digits will the answer include? Unit: Moon
Transcribed Image Text:3. With a small telescope, you notice a crater on the moon that spans an angle of about 1 arc-minute. Suppose the moon that night was about 225,000 miles away. What would be the actual diameter of the crater, in miles? Before you can use equation (3) to determine the crater diameter, you must convert its angular size into degrees. (See the examples in Table B.) Angle of 1 arc-minute telescope Distance to the Moon = 225,000 miles Answer: Lunar Crater How many significant digits will the answer include? Unit: Moon
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