A pan filled with hot food cools from `94^(@)C` to `86^(@)C` in 2 minutes when the room temperature is at `20^(@)C`. How long will it take to cool from `71^(@)C` to ` 69^(@)C`? Here cooling takes place ac cording to Newton's law of cooling.

A pan filled with hot food cools from 94^(@)C to 86^(@)C in 2 minutes when th room temperature is at 20^(@)C . How long will it take to cook from 71^(@)C to 69^(@)C ?

A pan filled with hot food cools from 94^@C to 86^@C in 2 minutes. When the room temperature is 20^@C . How long will it take to cool from 74^@C to 66^@C ?

A pan filled with hot food cools from 50^(@)C to 48^(@)C in 5 s when the room temperature is at 30^(@)C . How long will it take to cool from 40^(@)C to 39^(@)C ?

A pan filled with hot food cools form 94^(@)C to 86^(@)C in 2 minutes . When the roo temperature is 20^(@)C . How long will it cool from 74^(@)C to 66^(@)C ?

A hot water cools from 92^(@)C to 84^(@)C in 3 minutes when the room temperature is 27^(@)C . How long will it take for it to cool from 65^(@)C to 60^(@)C ?

A liquid contained in a beaker cools from 80^(@)C to 60^(@)C in 10 minutes. If the temperature of the surrounding is 30^(@)C , find the time it will take to cool further to 48^(@)C . Here cooling take place ac cording to Newton's law of cooling.

A body cools from 50^(@)C to 49.9^(@)C in 5 s. the temperature of the surroundings is 30^(@)C . How long will the body, take to cool from 40^(@)C to 39.9^(@)C ?

A body cools from 50^(@)C to 40^(@)C is 5 minutes when its surrounding are at a constant temperature of 20^(@)C . How long will it take for it to cool by another 10^(@)C ?