EBK THE COSMIC PERSPECTIVE
9th Edition
ISBN: 9780135161753
Author: Voit
Publisher: VST
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Chapter 16, Problem 54EAP
To determine
The minimum mass needed by isolated molecular clouds to form a star.
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A. Estimate the surface gravity of a neutron star with R = 10 km and M = 2M. .
B. Determine the density of such a neutron star in g/cm³.
C. How much would a teaspoon (5 cm³) of this neutron star weigh on Earth? This
material is known as neutronium. Give your answer in pounds.
D. Which would be heavier: a teaspoon of neutronium weighed on Earth, or a teaspoon
of water weighed on the surface of a neutron star?
=
A star population is composed of stars with masses in the range between 1M and 150M.
The initial mass function is = 0 (M/M)-2.3, where o (Mo). The luminosity of a star
= (M/M) 3.3. Calculate the percentage of the total luminosity
of the stars in the population which is produced by stars with mass between 120M and
150M.
scales with its mass as L/L
2GM
What is the escape velocity (in km/s) from the surface of a 1.1 Mo neutron star? From a 3.0 M, neutron star? (Hint: Use the formula for escape velocity, V. =
make sure to express quantities in units of meters, kilograms, and seconds. Assume a neutron star
has a radius of 11 km and assume the mass of the Sun is 1.99 x 1030 kg.)
1.1 Me neutron star
km/s
3.0 M. neutron star
km/s
Chapter 16 Solutions
EBK THE COSMIC PERSPECTIVE
Ch. 16 - Prob. 1VSCCh. 16 - Prob. 2VSCCh. 16 - Prob. 3VSCCh. 16 - Prob. 4VSCCh. 16 - Prob. 1EAPCh. 16 - Prob. 2EAPCh. 16 - Prob. 3EAPCh. 16 - Prob. 4EAPCh. 16 - Prob. 5EAPCh. 16 - Prob. 6EAP
Ch. 16 - Prob. 7EAPCh. 16 - Prob. 8EAPCh. 16 - Prob. 9EAPCh. 16 - Prob. 10EAPCh. 16 - Prob. 11EAPCh. 16 - Prob. 12EAPCh. 16 - Prob. 13EAPCh. 16 - Prob. 14EAPCh. 16 - Prob. 15EAPCh. 16 - Prob. 16EAPCh. 16 - Prob. 17EAPCh. 16 - Prob. 18EAPCh. 16 - Prob. 19EAPCh. 16 - Prob. 20EAPCh. 16 - Prob. 21EAPCh. 16 - Prob. 22EAPCh. 16 - Prob. 23EAPCh. 16 - Prob. 24EAPCh. 16 - Prob. 25EAPCh. 16 - Prob. 26EAPCh. 16 - Prob. 27EAPCh. 16 - Prob. 28EAPCh. 16 - Prob. 29EAPCh. 16 - Prob. 30EAPCh. 16 - Prob. 31EAPCh. 16 - Prob. 32EAPCh. 16 - Prob. 33EAPCh. 16 - Prob. 34EAPCh. 16 - Prob. 35EAPCh. 16 - Prob. 37EAPCh. 16 - Prob. 38EAPCh. 16 - Prob. 39EAPCh. 16 - Prob. 40EAPCh. 16 - Prob. 41EAPCh. 16 - Prob. 42EAPCh. 16 - Prob. 43EAPCh. 16 - Prob. 44EAPCh. 16 - Prob. 45EAPCh. 16 - Prob. 46EAPCh. 16 - Prob. 47EAPCh. 16 - Prob. 48EAPCh. 16 - Prob. 49EAPCh. 16 - Prob. 50EAPCh. 16 - Prob. 51EAPCh. 16 - Prob. 52EAPCh. 16 - Prob. 53EAPCh. 16 - Prob. 54EAPCh. 16 - Prob. 55EAPCh. 16 - Internal Temperature of the Sun. The Sun is...Ch. 16 - Prob. 57EAPCh. 16 - Angular Momentum of a Close Binary. Some close...Ch. 16 - Prob. 59EAP
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