Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Textbook Question
Chapter 7, Problem 17RQ
Why does the speed of a satellite undergo change in an elliptical orbit?
Expert Solution & Answer
To determine
The reason for the change in the speed of a satellite along an elliptical path.
Answer to Problem 17RQ
The speed of the satellite undergoes a change in the elliptical orbit due to the variation in the distance between the planet and satellite.
Explanation of Solution
The orbital speed of the planet depends on the mass of the planet and radius of the orbit. The mass of the planet does not change for the satellite. The radius of the orbit is the distance between the planet and satellite. The radius of the orbit remains constant for a circular path but vary for the elliptical path.
As the distance between the planet and satellite continuously changes, so the speed of the satellite also changes. The speed of the planet becomes highest at least distance and become least at the highest distance from the planet.
Conclusion:
Therefore, the speed of the satellite undergoes a change in the elliptical orbit due to the variation in the distance between the planet and satellite.
Chapter 7 Solutions
Conceptual Physical Science Explorations
Ch. 7 - What connection did Newton make between a falling...Ch. 7 - What does it mean to say something moving in a...Ch. 7 - In what sense does the Moon "fall?"Ch. 7 - State Newton's law of universal gravitation in...Ch. 7 - How does the force of gravity between two bodies...Ch. 7 - How does the thickness of paint sprayed on a...Ch. 7 - Prob. 7RQCh. 7 - What is the magnitude of gravitational force...Ch. 7 - What is the magnitude of the gravitational force...Ch. 7 - What do we call the gravitational force between...
Ch. 7 - When G was first measured, the experiment was...Ch. 7 - With no gravity, a horizontally moving projectile...Ch. 7 - A ball is batted upward at an angle. What happens...Ch. 7 - With no air drag, what happens to the horizontal...Ch. 7 - How can a projectile "fall around the Earth?"Ch. 7 - Are the planets of the solar system simply...Ch. 7 - Why does the speed of a satellite undergo change...Ch. 7 - At what part of an elliptical orbit does a...Ch. 7 - What is the minimum speed for orbiting the Earth...Ch. 7 - What makes the Earth round?Ch. 7 - The planet and its much less massive moon...Ch. 7 - Three boys on three towers of the same height toss...Ch. 7 - Comment on whether or not this label on a consumer...Ch. 7 - Gravitational force acts on all bodies in...Ch. 7 - What would be the path of the moon if somehow all...Ch. 7 - Is the force of gravity stronger on a piece of...Ch. 7 - Is the force of gravity stronger on a piece of...Ch. 7 - What is the magnitude and direction of the...Ch. 7 - The Earth and the Moon are attracted to each other...Ch. 7 - What do you say to a friend who says that if...Ch. 7 - A friend says that astronauts in orbit are...Ch. 7 - Is the horizontal component of the velocity for a...Ch. 7 - A heavy crate accidentally falls from a highflying...Ch. 7 - At what point in its trajectory does a batted...Ch. 7 - A park ranger shoots a monkey hanging from a...Ch. 7 - Since Earth is gravitationally attracted to the...Ch. 7 - Prob. 15TECh. 7 - Prob. 16TECh. 7 - If a cannonball is fired from a tall mountain,...Ch. 7 - When an Earth satellite is placed into a higher...Ch. 7 - If a space vehicle circled Earth at a distance...Ch. 7 - Some people dismiss the validity of scientific...Ch. 7 - If you stood atop a ladder that was so tall you...Ch. 7 - Find the change in the force of gravity between...Ch. 7 - Find the change in the force of gravity between...Ch. 7 - Find the change in the force of gravity between...Ch. 7 - Find the change in the force of gravity between...Ch. 7 - Find the change in the force of gravity between...Ch. 7 - Consider a bright point of light located 1 m from...Ch. 7 - Calculate the force of gravity between the Earth...Ch. 7 - A 3-kg newborn baby at the Earths surface is...Ch. 7 - Students in a lab measure the speed of a steel...Ch. 7 - The force of gravity between two planets depends...Ch. 7 - When the distance between two stars is reduced by...Ch. 7 - If the Sun were twice as massive, its pull on Mars...Ch. 7 - When an astronaut in orbit is weightless, he or...Ch. 7 - When no air resistance acts on a fast-moving...Ch. 7 - Prob. 6RATCh. 7 - In circular orbit, the gravitational force on a...Ch. 7 - Prob. 8RATCh. 7 - A satellite in elliptical orbit Earth travels...Ch. 7 - A satellite in Earth orbit is above Earth's (a)...
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