UNIVERSE (LOOSELEAF):STARS+GALAXIES
6th Edition
ISBN: 9781319115043
Author: Freedman
Publisher: MAC HIGHER
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Chapter 16, Problem 38Q
To determine
The reason why one cannot bake a potato in the simulated corona that is recreated in the lab for
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the number of air density in a childs balloon is roughly the same as sea level air, 10^19 particles/ cm ^3. if the balloon is now 18 cm in diameter, to what diameter in km would it need to expand to make the gas have the same density as ISM, about 1 particle/cm^3
1 Solar constant, Sun, and the 10 pc distance!
The luminosity of Sun is + 4- 1026 W - 4- 1033ergs-1, The Sun is located at a distance of
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Assuming stars to behave as black bodies stefan-boltzmann law to show that the luminosity of a star is related to its surface temperature and size in the following way:
L = 4(3.14)R^2oT^4
where o= 5.67 ×10^-8 Wm^-2 K-4 is the stefan- boltzmann constant. Then use this expression together with the knowledge that the sun has a surface temperature of 5700k and radius 695 500km to calculate the luminosity of the Sun in units of Watts
Chapter 16 Solutions
UNIVERSE (LOOSELEAF):STARS+GALAXIES
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