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Question
To expel hot air out of the kitchen, ‘A’ has an exhaust fan fitted on the window of her kitchen and ‘B’ has a similar exhaust fan fitted on the wall near the ceiling of her kitchen. Which of the exhaust fan will expel the hot air more effectively? Explain why?
Solution
B’s exhaust fan will expel the hot air more effectively because hot air rises up, so being at a greater height than A’s exhaust fan, the volume of air that will reach B’s exhaust fan will be more.
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