Under certain conditions, tsunami waves encountering land will develop into bores. A bore is a surge of water much like what would be expected if a dam failed suddenly and emptied a reservoir into a river bed. In the case of a bore traveling from the ocean into a dry river bed, one study† shows that the velocity V of the tip of the bore is proportional to the square root of its height h. This is expressed in the formula below, where k is a constant. V = kh0.5 A bore travels up a dry river bed. How does the velocity of the tip compare with its initial velocity when its height is reduced to one third of its initial height? (Round your answer to two decimal places.) The velocity changes by a factor of ______. How does the height of the bore compare with its initial height when the velocity of the tip is reduced to one quarter of its initial velocity? (Round your answer to two decimal places.) The height is reduced to ______ of the initial height. If the tip of one bore surging up a dry river bed is three times the height of another, how do their velocities compare? (Round your answer to two decimal places.) The velocity of the first is ______ times that of the other.
Under certain conditions, tsunami waves encountering land will develop into bores. A bore is a surge of water much like what would be expected if a dam failed suddenly and emptied a reservoir into a river bed. In the case of a bore traveling from the ocean into a dry river bed, one study† shows that the velocity V of the tip of the bore is proportional to the square root of its height h. This is expressed in the formula below, where k is a constant. V = kh0.5 A bore travels up a dry river bed. How does the velocity of the tip compare with its initial velocity when its height is reduced to one third of its initial height? (Round your answer to two decimal places.) The velocity changes by a factor of ______. How does the height of the bore compare with its initial height when the velocity of the tip is reduced to one quarter of its initial velocity? (Round your answer to two decimal places.) The height is reduced to ______ of the initial height. If the tip of one bore surging up a dry river bed is three times the height of another, how do their velocities compare? (Round your answer to two decimal places.) The velocity of the first is ______ times that of the other.
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter6: Energy Of A System
Section: Chapter Questions
Problem 8P
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Under certain conditions, tsunami waves encountering land will develop into bores. A bore is a surge of water much like what would be expected if a dam failed suddenly and emptied a reservoir into a river bed. In the case of a bore traveling from the ocean into a dry river bed, one study† shows that the velocity V of the tip of the bore is proportional to the square root of its height h. This is expressed in the formula below, where k is a constant.
V = kh0.5
A bore travels up a dry river bed. How does the velocity of the tip compare with its initial velocity when its height is reduced to one third of its initial height? (Round your answer to two decimal places.)
The velocity changes by a factor of ______.
How does the height of the bore compare with its initial height when the velocity of the tip is reduced to one quarter of its initial velocity? (Round your answer to two decimal places.)
The height is reduced to ______ of the initial height.
If the tip of one bore surging up a dry river bed is three times the height of another, how do their velocities compare? (Round your answer to two decimal places.)
The velocity of the first is ______ times that of the other.
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