21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 10, Problem 3QP
To determine
The radius of the planet.
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The first planets found in a pulsar system were found to have a mass of about
a.
1 Earth mass.
b.
3–4 Earth masses.
c.
20 Earth masses.
d.
100 Earth masses.
e.
zero, because planets have not been found around pulsars.
GMm
F,
r2
F(r = R)
The surface gravity g
of a body is. The acceleration due to gravity that an object
m
would feel on the surface of the body.
A. Show that the surface gravity of Earth is ge = 9.8 m/s².
B. Determine the surface gravity of the Sun.
C. Determine the surface gravity of the Sun when it becomes a red giant star, assuming
RG 1 AU. Use this answer to explain the significant mass loss rates observed in
these objects.
19 A planet is detected via the Doppler technique. The velocity change of the star is a measure of
A The planet's size and density.
B
C
D
E
The planet's mass and orbital distance.
The planet's orbital period and eccentricity.
The planet's mass and composition.
The planet's size and orbital distance.
Chapter 10 Solutions
21st Century Astronomy
Ch. 10.1 - Prob. 10.1CYUCh. 10.2 - Prob. 10.2CYUCh. 10.3 - Prob. 10.3CYUCh. 10.4 - Prob. 10.4CYUCh. 10.5 - Prob. 10.5CYUCh. 10 - Prob. 1QPCh. 10 - Prob. 2QPCh. 10 - Prob. 3QPCh. 10 - Prob. 4QPCh. 10 - Prob. 5QP
Ch. 10 - Prob. 6QPCh. 10 - Prob. 7QPCh. 10 - Prob. 8QPCh. 10 - Prob. 9QPCh. 10 - Prob. 10QPCh. 10 - Prob. 11QPCh. 10 - Prob. 12QPCh. 10 - Prob. 13QPCh. 10 - Prob. 14QPCh. 10 - Prob. 15QPCh. 10 - Prob. 16QPCh. 10 - Prob. 17QPCh. 10 - Prob. 18QPCh. 10 - Prob. 19QPCh. 10 - Prob. 20QPCh. 10 - Prob. 21QPCh. 10 - Prob. 22QPCh. 10 - Prob. 23QPCh. 10 - Prob. 24QPCh. 10 - Prob. 25QPCh. 10 - Prob. 26QPCh. 10 - Prob. 27QPCh. 10 - Prob. 28QPCh. 10 - Prob. 29QPCh. 10 - Prob. 30QPCh. 10 - Prob. 31QPCh. 10 - Prob. 32QPCh. 10 - Prob. 33QPCh. 10 - Prob. 34QPCh. 10 - Prob. 35QPCh. 10 - Prob. 36QPCh. 10 - Prob. 37QPCh. 10 - Prob. 38QPCh. 10 - Prob. 39QPCh. 10 - Prob. 40QPCh. 10 - Prob. 41QPCh. 10 - Prob. 42QPCh. 10 - Prob. 43QPCh. 10 - Prob. 44QPCh. 10 - Prob. 45QP
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