Waiting on the alfalfa tea and Newton’s law of cooling
To make herbal tea, Layla pours boiling water into a teacup and onto a teabag. Immediately after pouring, she lowers a thermometer into the teacup. When the thermometer reaches its highest reading, Layla starts her timing. The highest temperature achieved was T = 99°C at a time when t = 0 seconds. After 42 seconds, the tea temperature has descended to 96.8°C. If Layla left her tea out all day it would cool to a steady state temperature of 19°C. Layla will not drink tea hotter than 82°C. How long t from the time she started timing will she have to wait for cooling?
t = ______ seconds
First correct answer to arrive at [email protected] wins a Tucker’s Ice Cream gift card…