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Answer: A very simplified schematic of the rain drainage

Fundamentals of Physics Extended | 9th Edition | ISBN: 9780470469088 | Authors: David Halliday ISBN: 9780470469088 189

Solution for problem 72 Chapter 14

Fundamentals of Physics Extended | 9th Edition

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Fundamentals of Physics Extended | 9th Edition | ISBN: 9780470469088 | Authors: David Halliday

Fundamentals of Physics Extended | 9th Edition

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Problem 72

A very simplified schematic of the rain drainage system for a home is shown in Fig. 14-55. Rain falling on the slanted roof runs off into gutters around the roof edge; it then drains through downspouts (only one is shown) into a main drainage pipe M below the basement, which carries the water to an even larger pipe below the street. In Fig. 14-55, a floor drain in the basement is also connected to drainage pipe M. Suppose the following apply: 1. the downspouts have height hI = 11 m, 2. the floor drain has height h2 = 1.2 m, 3. pipe M has radius 3.0 cm, 4. the house has side width w = 30 m and front length L = 60 m, 5. all the water striking the roof goes through pipe M, 6. the initial speed of the water in a downspout is negligible, 7. the wind speed is negligible (the rain falls vertically). At what rainfall rate, in centimeters per hour, will water from pipe M reach the height of the floor drain and threaten to flood the basement?

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Lectures 8 nd Dynamics ­ KINEMATICS describes “how” things move, DYNAMICS describes “why” things move ­ Unbalanced Force causes motion to c hange (Δv ) Force → a physical uantity escribing how hard and in what direction acceleration is moving (push or pull) ­ Requires an agent a nd object ­ Is a vector Contact Force ­ Physically touches o bject ­ The agent is exactly what is in contact with the object Long Range Force ­ Not touching (gravity is the only one

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Chapter 14, Problem 72 is Solved
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Textbook: Fundamentals of Physics Extended
Edition: 9
Author: David Halliday
ISBN: 9780470469088

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Answer: A very simplified schematic of the rain drainage