A level a metal bar is heated to a certain temperature and then th heat source is removed .at time t minutes after the heat source is removed ,the temperature ,θ degrees clelsius ,of the metal bar is given by θ=280/1+0.02t,at what rate is the tempe
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/20 16:33:07
![A level a metal bar is heated to a certain temperature and then th heat source is removed .at time t minutes after the heat source is removed ,the temperature ,θ degrees clelsius ,of the metal bar is given by θ=280/1+0.02t,at what rate is the tempe](/uploads/image/z/14704458-42-8.jpg?t=A+level+a+metal+bar+is+heated+to+a+certain+temperature+and+then+th+heat+source+is+removed+.at+time+t+minutes+after+the+heat+source+is+removed+%2Cthe+temperature+%2C%CE%B8+degrees+clelsius+%2Cof+the+metal+bar+is+given+by+%CE%B8%3D280%2F1%2B0.02t%2Cat+what+rate+is+the+tempe)
A level a metal bar is heated to a certain temperature and then th heat source is removed .at time t minutes after the heat source is removed ,the temperature ,θ degrees clelsius ,of the metal bar is given by θ=280/1+0.02t,at what rate is the tempe
A level
a metal bar is heated to a certain temperature and then th heat source is removed .at time t minutes after the heat source is removed ,the temperature ,θ degrees clelsius ,of the metal bar is given by θ=280/1+0.02t,at what rate is the temperature decreasing 100 minutes after the removal of the heat source
A level a metal bar is heated to a certain temperature and then th heat source is removed .at time t minutes after the heat source is removed ,the temperature ,θ degrees clelsius ,of the metal bar is given by θ=280/1+0.02t,at what rate is the tempe
温度函数为θ=280/(1+0.02t) t≥0(min)
在100分钟后,θ=280/(1+0.02*100)=93.33(度)