A thermometer is removed from a room where the temperature is 70° F and is taken outside, where the airtemperature is 20° F. After one-half minute the thermometer reads 60° F.a. What is the reading of the thermometer at t = 1 min? (Round your answer to two decimal places.)b. How long will it take for the thermometer to reach 25° F? (Round your answer to two decimal places.)

according to the Newton's law of cooling dTdt=-kT-Ta where T is the reading of temperature in…

Answered: the air s.) laces.)

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter16: Table Of Decimal Equivalents And Combined Operations Of Decimal Fractions

Section: Chapter Questions

Problem 32A

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Similar questions

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Compute the following problems. Express the answers to the nearest whole number. Use N=12C3.1416D or 12CD for customary units and N=1000C3.1416D or 1000CD for metric units. An annealed cast iron housing is drilled with a cutting speed of 20 meters per minute using a 22-millimeter diameter carbon steel drill. Find the revolutions per minute.
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