A body cools from `60^@ C to 40^@C` in 7 minutes. What will be its temperature after next 7 minutes. The temperature of surrounding is `10^@C`.

A body cools from 80^@C to 50^@C in 5 minuts. Calculate the time it takes to cool from 60^@C to 30^@C . The temperature of surrounding is 20^@C .

A body takes 10 minutes to cool from 60^@C to 50^@C . If the temperature of surrounding s is 25^@C , then temperature of body after next 10 minutes will be

true or false body temperature of a man is 37° C.

A particular substance is being cooled by a stream of cold air (temperature of the air is constant and is 5^(@)C ) where rate of cooling is directly proportional to square of difference of temperature of the substance and the air. If the substance is cooled from 40^(@)C to 30^(@)C in 15 min and temperature after 1 hour is T^(@)C, then find the value of [T]//2, where [.] represents the greatest integer function.

At what temperature (in (^@C) ) will the speed of sound in air be 3 times its value at 0^@C ?

The heat required to raise the temperature of a body by 1C degree is called