EP CONCEPTUAL PHYSICS-ONLINE ACCESS
9th Edition
ISBN: 9780133246810
Author: Hewitt
Publisher: SAVVAS L
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Textbook Question
Chapter 14, Problem 8A
a. Where in an elliptical orbit is the speed of a satellite maximum?
b. Where is it minimum?
(a)
Expert Solution
To determine
The position in an elliptical orbit where the speed of a satellite is maximum.
Explanation of Solution
Introduction:
As per Kepler’s laws of planetary motion, the line joining a satellite to the planet in an elliptical orbit sweeps equal area in equal interval of time.
When a satellite would be at the closest position in the elliptical orbit towards the planet, its speed would be maximum.
Conclusion:
Thus, at periapsis, the speed of a satellite is maximum.
(b)
Expert Solution
To determine
The position in an elliptical orbit where the speed of a satellite is minimum.
Explanation of Solution
Introduction:
As per Kepler’s laws of planetary motion, the line joining a satellite to the planet in an elliptical orbit sweeps equal area in equal interval of time.
When a satellite would be at the farthest position in the elliptical orbitfrom the planet, its speed would be minimum.
Conclusion:
Thus, at apoapsis, the speed of a satellite is minimum.
Chapter 14 Solutions
EP CONCEPTUAL PHYSICS-ONLINE ACCESS
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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