College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Chapter 6, Problem 20CQ
Two friends are having a conversation. Anna says a satellite in orbit is in freefall because the satellite keeps falling toward Earth. Tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/s2. Who do you agree with and why?
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What keeps up a satellite on its orbit?
a. Gravitational Force of Attraction
b. High Tangential Speed
c. The empty space
d. Weightless Motion
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. These are called geosynchronous orbits. The altitude of a geosynchronous orbit is 3.58 x 10^7m. a. What is the period of a satellite in a geosynchronous orbit? b. What is the apparent weight of a 2000 kg satellite in a geosynchronous orbit?
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. These are called geosynchronous orbits. The altitude of a geosynchronous orbit is 3.58×107m(≈22,000miles)3.58×107m(≈22,000miles).
What is the period of a satellite in a geosynchronous orbit?
Express your answer to three significant figures and include the appropriate units.
Find the value of gg at this altitude.
Express your answer to three significant figures and include the appropriate units.
What is the weight of a 2000 kg satellite in a geosynchronous orbit?
Express your answer as an integer and include the appropriate units.
Chapter 6 Solutions
College Physics
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