Essential Cosmic Perspective, The, Books a la Carte Edition & Modified MasteringAstronomy with Pearson eText -- ValuePack Access Card -- for The Essential Cosmic Perspective Package
Essential Cosmic Perspective, The, Books a la Carte Edition & Modified MasteringAstronomy with Pearson eText -- ValuePack Access Card -- for The Essential Cosmic Perspective Package
1st Edition
ISBN: 9780133879216
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 9, Problem 45EAP

Room to Roam. It's estimated that there are a trillion comets in the Oort cloud, which extends out to about 50,000 AU. What is the to1al volume of the Oort cloud, in cubic AU? How much space does each comet have in cubic AU, on average? Take the cube root of the average volume per comet to find the cornets' typical spacing in AU. (Hints: For the purpose of this calculation, you can assume the Oort cloud fills the whole sphere out to 50,000 AU. The volume of a sphere is given by 4 3 π r 3 , where r is the radius.)

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1.62 On a training flight, a Figure P1.62 student pilot flies from Lincoln, Nebraska, to Clarinda, Iowa, next to St. Joseph, Missouri, and then to Manhattan, Kansas (Fig. P1.62). The directions are shown relative to north: 0° is north, 90° is east, 180° is south, and 270° is west. Use the method of components to find (a) the distance she has to fly from Manhattan to get back to Lincoln, and (b) the direction (relative to north) she must fly to get there. Illustrate your solutions with a vector diagram. IOWA 147 km Lincoln 85° Clarinda 106 km 167° St. Joseph NEBRASKA Manhattan 166 km 235° S KANSAS MISSOURI

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Essential Cosmic Perspective, The, Books a la Carte Edition & Modified MasteringAstronomy with Pearson eText -- ValuePack Access Card -- for The Essential Cosmic Perspective Package

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