In the figure below, Planet X is moving in a perfectly circular orbit around its companion star. The time between each position shown is exactly one month: 1. Write down Kepler’s second Law of planetary motion. 2. Does the planet obey Kepler’s second law? How do you know? 3. If you carefully watched this planet during the entire orbit, would its speed be increasing, decreasing, or staying the same? How do you know?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter1: Units And Measurement
Section: Chapter Questions
Problem 62P: (a) Estimate the density of the Moon. (b) Estimate the diameter of the Moon. (c) Given that the Moon...
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In the figure below, Planet X is moving in a perfectly circular orbit around its companion star.
The time between each position shown is exactly one month:

1. Write down Kepler’s second Law of planetary motion.
2. Does the planet obey Kepler’s second law? How do you know?
3. If you carefully watched this planet during the entire orbit, would its speed be increasing, decreasing, or
staying the same? How do you know? 

D
E
B
F
A
G
L
H
K
Transcribed Image Text:D E B F A G L H K
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