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A body is cooling in surroundings maintained at Its temperature after t minutes is given by: d t d ( ) = k ( 1

A body is cooling in surroundings maintained at

Its temperature aftertminutes is given by:

dtd() = k(10)

,wherek is a constant.If the temperature of the body is initially

(a)Findk

(b)Find the body's temperature after further 15 minutes.

Thank you.

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