COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 10, Problem 1QAP
To determine
To Explain:
Isaac Newton probably gained no insight by being hit on the head with a falling apple, but he did believe that "the Moon is falling."
Expert Solution & Answer
Explanation of Solution
Introduction:
Any two objects that exist in the universe exert a force of gravitational attraction on each other. Which is the gravitational attraction. The acceleration that is caused by this attraction is called gravitational acceleration.
The acceleration that acts on the apple makes it fall from the tree to the ground. Which makes the apple that had zero velocity initially to get an increasing velocity and finally to reach the ground. Similarly, Isaac Newton reasoned that, the moon which is having a higher mass than the apple should feel the same acceleration while it is orbiting around the earth. He reasoned that the moon is continuously falling due to the gravitational force that is exerted by the earth on moon, and thus curving around the earth and producing an orbit. The moon is having the exact correct velocity to complete a full orbit around the earth at the given distance.
Conclusion:
Gravitational acceleration is felt by the moon as does the apple that hit the Newton. Thus, the moon is having a similar falling due to the gravity as does the apple causing it to curve and get a full orbit around the earth.
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Figure 27-65 Problem 63.
Thor flies by spinning his hammer really fast from a leather strap at the end of the handle, letting go, then grabbing it and having it pull him. If Thor wants to reach escape velocity (velocity needed to leave Earth’s atmosphere), he will need the linear velocity of the center of mass of the hammer to be 11,200 m/s. Thor's escape velocity is 33532.9 rad/s, the angular velocity is 8055.5 rad/s^2. While the hammer is spinning at its maximum speed what impossibly large tension does the leather strap, which the hammer is spinning by, exert when the hammer is at its lowest point? the hammer has a total mass of 20.0kg.
If the room’s radius is 16.2 m, at what minimum linear speed does Quicksilver need to run to stay on the walls without sliding down? Assume the coefficient of friction between Quicksilver and the wall is 0.236.
Chapter 10 Solutions
COLLEGE PHYSICS
Ch. 10 - Prob. 1QAPCh. 10 - Prob. 2QAPCh. 10 - Prob. 3QAPCh. 10 - Prob. 4QAPCh. 10 - Prob. 5QAPCh. 10 - Prob. 6QAPCh. 10 - Prob. 7QAPCh. 10 - Prob. 8QAPCh. 10 - Prob. 9QAPCh. 10 - Prob. 10QAP
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