CONCEPTUAL PHYSICS-W/PRACTICING PHYSICS
9th Edition
ISBN: 9780321052025
Author: Hewitt
Publisher: PEARSON
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Question
Chapter 14, Problem 12A
To determine
To identify: Whether the satellite is closer or farther from the Earth when its speed is greatest.
Expert Solution & Answer
Answer to Problem 12A
The speed of satellite is greatest when closer to earth and least when farther from earth.
Explanation of Solution
Introduction:
The orbital speed equation of a satellite around the Earth is
A satellite revolves in an elliptical pathway. It is observed from the above relation that velocity is inversely proportional to the orbital distance. So, when the satellite goes away from the Earth the speed will be less and when it comes near the Earth, the speed will be more.
Conclusion:
Therefore, a satellite speeds up as it comes closer to Earth .
Chapter 14 Solutions
CONCEPTUAL PHYSICS-W/PRACTICING PHYSICS
Ch. 14 - If we drop a ball from rest, how far will it fall...Ch. 14 - What do the distances 8000 m and 5 m have to do...Ch. 14 - How does the direction of motion of a satellite in...Ch. 14 - Why doesnt gravitational force change the speed of...Ch. 14 - Does the period of a satellite in a circular orbit...Ch. 14 - Describe an ellipse.Ch. 14 - Why does gravitational force change the speed of a...Ch. 14 - a. Where in an elliptical orbit is the speed of a...Ch. 14 - The sum of PE and KE for a satellite in a circular...Ch. 14 - Why does the force of gravity do no work on a...
Ch. 14 - What scientist gathered accurate data on planetary...Ch. 14 - Prob. 12ACh. 14 - What is the mathematical relationship between how...Ch. 14 - a. What is the minimum speed for circling Earth in...Ch. 14 - Neglecting air resistance, what will happen to a...Ch. 14 - a. How fast would a particle have to be ejected...Ch. 14 - Prob. 17ACh. 14 - Although the escape speed from the surface of...Ch. 14 - How was Pioneer 10 able to escape the solar system...Ch. 14 - The dashed lines show three circular orbits about...Ch. 14 - Four satellites in circular orbit about Earth have...Ch. 14 - The positions of a satellite in elliptical orbit...Ch. 14 - Kepler tells us that a planet sweeps out equal...Ch. 14 - A satellite can orbit at 5 km above the moon, but...Ch. 14 - Does the speed of a satellite around Earth depend...Ch. 14 - If a cannonball is fired from tall mountain,...Ch. 14 - Does gravity do any network on a satellite in an...Ch. 14 - A geosynchronous Earth satellite can remain almost...Ch. 14 - If you stopped an Earth satellite dead in its...Ch. 14 - In an accidental explosion, a satellite breaks in...Ch. 14 - Prob. 31ACh. 14 - Why do you suppose that sites close to the equator...Ch. 14 - Why do you suppose that a space shuttle is sent...Ch. 14 - Consider two planets: Mercury, close to the sun,...Ch. 14 - What is the maximum possible speed of impact upon...Ch. 14 - Why does most of the work done in launching a...Ch. 14 - If Pluto were somehow stopped short in its orbit,...Ch. 14 - If an astronaut in an orbiting space shuttle...Ch. 14 - If Earth somehow acquired more mass, with no...Ch. 14 - Calculate the speed in m/s at which Earth revolves...Ch. 14 - A spaceship in circular orbit about the moon is...Ch. 14 - Calculate the speed in m/s at which the moon...Ch. 14 - Prob. 43ACh. 14 - An orbiting satellite of mass m is pulled toward...Ch. 14 - The force of gravity between Earth and an Earth...Ch. 14 - Use the result of Question 45 (now with the sun...Ch. 14 - In 1610, Galileo discovered four moons of Jupiter....Ch. 14 - A planet in a circular orbit takes a time T to...Ch. 14 - Prob. 49ACh. 14 - Use the equation T=2r3GM to show that the period...
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