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Hello.
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Problem 23 is an angular momentum problem and is talking about our earth and our sun.
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You will need to look at appendix d and e in the back of your textbook to find some data about our earth.
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You'll need the mass of the earth, radius of the earth, and then our orbital radius around the sun.
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So part a would like to know what is the angular.
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Momentum of the earth in a circular orbit around the sun.
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Okay, angular momentum.
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Formula is i omega.
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Now, we will model the earth as a particle, and that would be m r squared.
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I would be mr squared omega.
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Now, since the earth is moving in a circle around the sun, we know that omega can be calculated as 2 pi r over its period.
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So using our data, we know we can simplify this, 2 pi, mass, radius cube over the period.
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Now, we have 2 pi, mass of the earth, is 5 .97, 10 to the 20.
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24th, radius of the orbit of the earth around the sun...