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9 A heater of temperature 60 C is put at the middle of a straight...

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Calculus

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9 A heater of temperature 60 C is put at the middle of a straight corridor in a house It is given that the room temperature in the house without the heater is 6 C Suppose the air temperature is decreased by 2 C for every 10 cm away from the heater a What is the air temperature 2 2 m away from the heater 3 marks b Jessica thinks that 24 C is the most comfortable temperature How far should she stay from the heater 2 marks

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