Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Chapter 2, Problem 99DQ
Before the time of Galileo and Newton, many learned scholars thought that a stone dropped from the top of a tall mast on a moving ship would fall vertically and hit the deck behind the mast by a distance equal to how far the ship had moved forward during the time the stone was falling. In light of your understanding of Newton’s laws, what do you and your classmates think about this idea?
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Newton's Law of Gravitation says that the magnitude F of the
force exerted by a body of mass m on a body of mass M is
GmM
F =
where G is the gravitational constant and r is the distance
between the bodies.
(a) Find dF/dr.
dF
dr
What is the meaning of dF/dr?
dF/dr represents the rate of change of the distance between the bodies with respect to the force.
dF/dr represents the rate of change of the force with respect to the distance between the bodies.
dF/dr represents the rate of change of the mass with respect to the distance between the bodies.
dF/dr represents the amount of force per distance.
dF/dr represents the rate of change of the mass with respect to the force.
What does the minus sign indicate?
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The minus sign indicates that as the distance between the bodies increases, the magnitude of the force increases.
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Chapter 2 Solutions
Conceptual Physical Science (6th Edition)
Ch. 2 - State the law of inertia.Ch. 2 - Is inertia a property of matter or a force of some...Ch. 2 - What concept was missing from people's minds in...Ch. 2 - When a bird lets go of a branch and drops to the...Ch. 2 - What kind of path would the planets follow if...Ch. 2 - State Newton's second law.Ch. 2 - Is acceleration directly or inversely proportional...Ch. 2 - Is acceleration directly or inversely proportional...Ch. 2 - If the mass of a sliding block is tripled at the...Ch. 2 - What is the net force that acts on a 10-N freely...
Ch. 2 - Why doesnt a heavy object accelerate more than a...Ch. 2 - What is the net force that acts on a 10-N falling...Ch. 2 - What two principal factors affect the force of air...Ch. 2 - What is the acceleration of a falling object that...Ch. 2 - If two objects of the same size fall through air...Ch. 2 - Why does a heavy parachutist fall faster than a...Ch. 2 - Earlier in this chapter, we treated force as a...Ch. 2 - How many forces are required for a single...Ch. 2 - When you push against a wall with your fingers,...Ch. 2 - A boxer can hit a heavy bag with great force. Why...Ch. 2 - State Newtons third law.Ch. 2 - Consider hitting a baseball with a bat. 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