EP CONCEPTUAL PHYSICAL SCI.-MOD.MASTER.
6th Edition
ISBN: 9780134091983
Author: Hewitt
Publisher: PEARSON CO
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Textbook Question
Chapter 22, Problem 36TAS
Darcy’s law gives us the volume flow rate—volume per time (for example, cubic meters per day, m3/day). Another way to express volume is on a per-unit-area basis. For example, if we have a 1-m3 cube, we know its base is I m2—the cross-sectional area of the cube—and its height is 1 m. If we fill the cube with water, we can say we have 1 m of water per unit area. Darcy’s law can be rearranged to calculate the volume flow rate per unit area. This is called the specific discharge, which has units of length per time (for example, meters per day, m/day). Completing parts (a) through (c) will illustrate how specific discharge is related to the volume flow rate. (Hint: Assume that the units for hydraulic
- (a) Suppose 1 m3 of water is pumped from a well into an empty cylindrical tank. If the water level is 2 m above the base, what is the cross-sectional area of the tank? (Hint: Volume of a cylinder = πr2b = area of base X height.)
- (b) If it takes half a day to pump the 1 m3 of water into the tank, what is the flow rate in terms of both volume per unit time and specific discharge?
- (c) Write Darcy’s law so that it calculates the specific discharge.
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Chapter 22 Solutions
EP CONCEPTUAL PHYSICAL SCI.-MOD.MASTER.
Ch. 22 - Where does most of Earths precipitation occur?Ch. 22 - As water is precipitated onto the land, where does...Ch. 22 - Distinguish between porosity and hydraulic...Ch. 22 - If a hole is dug in the unsaturated zone, does it...Ch. 22 - Prob. 5RCQCh. 22 - Prob. 6RCQCh. 22 - What is an artesian system, and how is it formed?Ch. 22 - Prob. 8RCQCh. 22 - How does rainwater naturally become acidic? How...Ch. 22 - Prob. 10RCQ
Ch. 22 - Name three erosional features caused by...Ch. 22 - What is the difference between a cave and a...Ch. 22 - Prob. 13RCQCh. 22 - What happens to stream speed when the discharge of...Ch. 22 - Prob. 15RCQCh. 22 - Which transports more sediment: a laminar flow or...Ch. 22 - Prob. 17RCQCh. 22 - Prob. 18RCQCh. 22 - Prob. 19RCQCh. 22 - What types of streams and stream valleys do we...Ch. 22 - Prob. 21RCQCh. 22 - What is a delta?Ch. 22 - Prob. 23RCQCh. 22 - Prob. 24RCQCh. 22 - Prob. 25RCQCh. 22 - Prob. 26RCQCh. 22 - Prob. 27RCQCh. 22 - What land features are formed from glacial...Ch. 22 - Prob. 29RCQCh. 22 - How are ripple marks formed?Ch. 22 - Prob. 31AHOPCh. 22 - Prob. 32AHOPCh. 22 - Prob. 33TASCh. 22 - A particular stream widens as it progresses...Ch. 22 - A pumping well was drilled and completed in a sand...Ch. 22 - Darcys law gives us the volume flow ratevolume per...Ch. 22 - The hydraulic head at point A is 209 m. At point...Ch. 22 - Prob. 38TARCh. 22 - Prob. 39TARCh. 22 - In descending order, rank the rocks in terms of...Ch. 22 - A stream becomes a river as h moves downgradient....Ch. 22 - Rank, from greatest to least, these forces of...Ch. 22 - Streams carry sediment as well as water. List the...Ch. 22 - A delta is the end of a river. Going from offshore...Ch. 22 - Prob. 45TARCh. 22 - What percentage of Earth's supply of water is...Ch. 22 - Where does most rainfall on Earth finally end up...Ch. 22 - Evaporation moves water from Earth's surface to...Ch. 22 - Prob. 49ECh. 22 - Prob. 50ECh. 22 - Prob. 51ECh. 22 - In an aquifer, if the water table next to a stream...Ch. 22 - In a confined aquifer, water in a well can rise...Ch. 22 - In an unconfined aquifer, how high can water rise...Ch. 22 - Prob. 55ECh. 22 - What are low-permeability rocks? Do they make good...Ch. 22 - Prob. 57ECh. 22 - Prob. 58ECh. 22 - Prob. 59ECh. 22 - Prob. 60ECh. 22 - Prob. 61ECh. 22 - Prob. 62ECh. 22 - Prob. 63ECh. 22 - What happens to stream speed if the discharge in a...Ch. 22 - Prob. 65ECh. 22 - Prob. 66ECh. 22 - In the United States, the Continental Divide...Ch. 22 - Prob. 68ECh. 22 - What three variables influence the speed of stream...Ch. 22 - Prob. 70ECh. 22 - Why do point bars form on the inside bends of...Ch. 22 - In the formation of a river delta, why are larger...Ch. 22 - What causes the formation of distributaries off...Ch. 22 - Prob. 74ECh. 22 - Why is surface water both a creator and a...Ch. 22 - Streams transport great amounts of sediment. Then...Ch. 22 - In terms of size, what kinds of sediments are...Ch. 22 - How does frictional drag play a role in the...Ch. 22 - Prob. 79ECh. 22 - Prob. 80ECh. 22 - Does all the ice in a glacier move at the same...Ch. 22 - Prob. 82ECh. 22 - Prob. 83ECh. 22 - Prob. 84ECh. 22 - Prob. 85ECh. 22 - Prob. 86ECh. 22 - Prob. 87ECh. 22 - Prob. 88ECh. 22 - Prob. 89ECh. 22 - Prob. 90ECh. 22 - Prob. 91ECh. 22 - Which of the three agents of transportationwind,...Ch. 22 - Which of the three agents of transportationwater,...Ch. 22 - Prob. 94ECh. 22 - Prob. 95ECh. 22 - Prob. 96DQCh. 22 - How does an increase in stream gradient and...Ch. 22 - Prob. 98DQCh. 22 - Prob. 99DQCh. 22 - Prob. 100DQCh. 22 - Prob. 1RATCh. 22 - Prob. 2RATCh. 22 - The work of surface water include all of the...Ch. 22 - The maximum amount of water a particular soil can...Ch. 22 - Prob. 5RATCh. 22 - Sand dunes move as wind (a) disperses sand. (b)...Ch. 22 - Prob. 7RATCh. 22 - What factors affect stream speed? (a) Discharge...Ch. 22 - Snow converts to glacial ice when subjected to (a)...Ch. 22 - Underground water in the saturated zone is called...
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