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Answer :
Answer:
In this case, the velocity in the duct is 6.25 m/s
Explanation:
To calculate the velocity in the duct, we can use the formula for air flow velocity in a duct:
Velocity = Volume flow rate / Cross-sectional area
Given:
- Volume flow rate of air = 0.25 m³/s
- Cross-sectional area of the square duct = 0.2 m x 0.2 m = 0.04 m²
Now, we can calculate the velocity:
Velocity = 0.25 m³/s / 0.04 m²
Velocity = 6.25 m/s
Therefore, the velocity in the duct is 6.25 m/s
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