Conceptual Physics C2009 Guided Reading & Study Workbook Se
9th Edition
ISBN: 9780133647396
Author: Prentice Hall
Publisher: Prentice Hall
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Textbook Question
Chapter 23, Problem 30A
You can determine wind direction if you wet your finger and hold it up into the air. Explain.
Expert Solution & Answer
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To determine
The method of finding the direction of air by wet finger.
Answer to Problem 30A
The cool side of finger determine the direction of air from which it comes .
Explanation of Solution
When the wet finger evaporates it feels cool, so in which direction the finger feeling cool it gives the direction of the air.
Conclusion:
The cool side of finger determine the direction of air from which it comes .
Chapter 23 Solutions
Conceptual Physics C2009 Guided Reading & Study Workbook Se
Ch. 23 - Prob. 1ACh. 23 - Prob. 2ACh. 23 - Why does a hot dog pant?Ch. 23 - What is condensation, and why is it also a warming...Ch. 23 - Prob. 5ACh. 23 - Which usually contains more water vapor—warm air...Ch. 23 - Why does warm moist air form clouds when it rises?Ch. 23 - Prob. 8ACh. 23 - Why do you feel less chilly if you dry yourself...Ch. 23 - Prob. 10A
Ch. 23 - Why does the temperature at which a liquid boils...Ch. 23 - Why is a pressure cooker even more useful when...Ch. 23 - Prob. 13ACh. 23 - How can water be made to both boil and freeze at...Ch. 23 - Prob. 15ACh. 23 - Prob. 16ACh. 23 - Prob. 17ACh. 23 - What is the effect of rapid evaporation on the...Ch. 23 - In a refrigerator, does the food cool when a vapor...Ch. 23 - Why is it important that a finger be wet before it...Ch. 23 - Calculate the energy absorbed by 20 grams of water...Ch. 23 - Calculate the energy needed to melt 50 grams of 0C...Ch. 23 - Calculate the energy needed to melt 100 grams of...Ch. 23 - Calculate the energy absorbed by 20 grams of 100C...Ch. 23 - Calculate the energy released by 20 grams of 100C...Ch. 23 - Calculate the total energy released when 20 grams...Ch. 23 - Prob. 27ACh. 23 - Prob. 28ACh. 23 - Classmate Matthew says that if all the molecules...Ch. 23 - You can determine wind direction if you wet your...Ch. 23 - Give two reasons why pouring a hot cup of coffee...Ch. 23 - At a picnic, why would wrapping a bottle in a wet...Ch. 23 - Why does dew form on the surface of a cold...Ch. 23 - Air-conditioning units contain no water whatever,...Ch. 23 - Prob. 35ACh. 23 - Prob. 36ACh. 23 - If a large tub of water is kept in a small...Ch. 23 - On a clear night, why does more dew form in an...Ch. 23 - Machines used for making snow at ski areas blow a...Ch. 23 - People who live where snowfall is common will...Ch. 23 - Prob. 41ACh. 23 - Why is it that, in cold winters, a tub of water...Ch. 23 - Why will spraying fruit trees with water before a...Ch. 23 - Andrew says that potatoes will cook faster in...Ch. 23 - Why is the constant temperature of boiling water...Ch. 23 - Prob. 46ACh. 23 - Elizabeth says that the boiling temperature of...Ch. 23 - Nick suspends a small jar of water in a saucepan,...Ch. 23 - Room-temperature water will boil spontaneously in...Ch. 23 - Your inventor friend proposes a design for...Ch. 23 - Hydrothermal vents are openings in the ocean floor...Ch. 23 - In the power plant of a nuclear submarine, the...Ch. 23 - Prob. 53ACh. 23 - How much steam at 100C must be condensed in order...Ch. 23 - How many calories ate given off by 1 gram of 100C...Ch. 23 - If 20 grams of hot water at 80C is poured into a...Ch. 23 - Answer Questions 57—61 in terms of joules rather...Ch. 23 - Answer Questions 57—61 in terms of joules rather...Ch. 23 - Answer Questions 57—61 in terms of joules rather...Ch. 23 - Prob. 60ACh. 23 - Answer Questions 57—61 in terms of joules rather...
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