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You want to measure the flow rate of air of density 1.225 kg/m³ in a differential pressure meter. The upstream pressure is 30 N/m² and the downstream pressure is 27 N/m². The meter has an area of 0.2 m². What is the flow rate?
O 0.286 m³/sec
O 0.221 m³/sec
O 0.443 m³/sec
O 0.990 m³/sec
​O It cannot be calculated with the information provided