The Cosmic Perspective (8th Edition)
8th Edition
ISBN: 9780134059068
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 3, Problem 45EAP
Be sure to show alt calculations clearly and state your final answers in complete sentences.
45. Method of Eratosthenes I. You are an astronomer on planet Nearth, which orbits a distant star. It has recently been accepted that Nearth is spherical in shape, though no one knows its size. One day, while studying in the library of Alectown, you learn that on the equinox your sun is directly overhead in the city of Nyene, located 1000 kilometers due north of you. On the equinox, you go outside and observe that the altitude of your sun is SOD. What is the circumference of Nearth? (Hint: Apply the technique used by Eratosthenes to measure Earth’s circumference.)
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Chapter 3 Solutions
The Cosmic Perspective (8th Edition)
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