Neco 2021 Physics Question 20
Practice objective / multiple choice question 20 from the 2021 Neco Physics examination.
A metal sphere initially at \(150^{\circ}\text{C}\) is placed in a room where the ambient temperature is \(25^{\circ}\text{C}\). After 5 minutes its temperature has fallen to \(95^{\circ}\text{C}\). Assuming Newton's law of cooling, \(T(t)=T_{\text{room}}+(T_0-T_{\text{room}})e^{-kt}\), determine the temperature of the sphere after 12 minutes. Give your answer to the nearest degree Celsius.
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About This Question
This is Neco 2021 Physics Question 20. It is one of the objective questions from the 2021 Neco Physics examination.
Difficulty level: Medium .
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