Asked by Sarah

A 19cm radius air duct is used to replenish the air of a room 9.2m x 6.0m x 4.0m every 18min . How fast does air flow in the duct?

Answers

Answered by Nathan
Use the equation Area = Volume / (velocity)x(time)

Rearrange the equation to solve for velocity.

So, (9.2x6.0x4.0) /
(Pi)(0.19)^2(1080)

So, the answer is 1.8m/s
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