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At what wind speed, in meters per second, does -10°C air cause the same effective temperature as still air at -29°C ?

At what wind speed, in meters per second, does -10°C air cause the same effective temperature as still air at -29°C ?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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The phenomena of "wind chill" is a complicated combination of heat transfer through convection and conduction. The following table estimates the effective temperatures due to wind chill for a variety of air temperatures and wind speeds.

a. At what wind speed, in meters per second, does -10°C air cause the same effective temperature as still air at -29°C ? 

Moving air temperature (C) 5 2 0 -5 -10 -20 -40 - Wind speed (m/s) 2 5 10 15 20 3 -1 -8 -10-12 0 -7 -12-16-18 -2 -9 -15-18-20 -7 -15-22-26-29 -12-21-29 -34-36 -23-34-44-50-52 -44-59-73-82-84
Transcribed Image Text:Moving air temperature (C) 5 2 0 -5 -10 -20 -40 - Wind speed (m/s) 2 5 10 15 20 3 -1 -8 -10-12 0 -7 -12-16-18 -2 -9 -15-18-20 -7 -15-22-26-29 -12-21-29 -34-36 -23-34-44-50-52 -44-59-73-82-84
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