4. A thermometer reading 75°F is taken out where the temperature is 20°F. The reading is 30°F 4 min later. Find (a) the thermometer reading 7 min after the ther- mometer was brought outside, and (b) the time taken for the reading to drop from 75°F to within a half degree of the air temperature. ANS. (a) 23°F; (b) 11.5 min. 5 At 1:00 RM 2 thermometer reading 70°E is taken outside wbere the air temperature
4. A thermometer reading 75°F is taken out where the temperature is 20°F. The reading is 30°F 4 min later. Find (a) the thermometer reading 7 min after the ther- mometer was brought outside, and (b) the time taken for the reading to drop from 75°F to within a half degree of the air temperature. ANS. (a) 23°F; (b) 11.5 min. 5 At 1:00 RM 2 thermometer reading 70°E is taken outside wbere the air temperature
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter9: Systems Of Linear Equations
Section9.6: Wind And Water Current Problems
Problem 14OE
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