How to Solve a Newton's Law of Cooling Problem

[GiannaMe'arah]

Homework Statement

A thermometer is removed from a room where the air temperature is 20degree C and is taken outside where the temp is -10degree C. After 1 minute the thermometer reading is 3degree C. What is its reading after 3 minutes?

Homework Equations

The Attempt at a Solution

im getting 3degree C after 3minutes, anyone?

 

[Stonebridge]

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