UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
11th Edition
ISBN: 9781319278670
Author: Freedman
Publisher: MAC HIGHER
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Chapter 20, Problem 7CC
To determine

The reason due to which the formation of a planetary nebula around Sun precipitates the end of nuclear reactions in the core.

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What is nebulae?
given that the suns lifetime is about 10 billion years, estimate the life expectancy of (A) a 0.2-solar mass, 0.01-solar luminosity red dwarf
. The radius of the nebula is about 0.401 light-years. The gas is expanding away from the star at a rate of about 37 kilometers/second . Considering that distance = velocity x time, calculate how long ago the gas left the star if its speed has been constant the whole time. Make sure you use consistent units for time, speed, and distance. Answer in years.

Chapter 20 Solutions

UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER

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