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A river's velocity is measured at 2 m/s. If the river's width is 10 m and depth
A river's velocity is measured at 2 m/s. If the river's width is 10 m and depth is 3 m, what is the discharge?
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Practice Questions
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Q1
A river's velocity is measured at 2 m/s. If the river's width is 10 m and depth is 3 m, what is the discharge?
60 m³/s
30 m³/s
20 m³/s
10 m³/s
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Discharge = Velocity × Area. Area = Width × Depth = 10 m × 3 m = 30 m². Discharge = 2 m/s × 30 m² = 60 m³/s.
Questions & Step-by-step Solutions
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Q
Q: A river's velocity is measured at 2 m/s. If the river's width is 10 m and depth is 3 m, what is the discharge?
Solution:
Discharge = Velocity × Area. Area = Width × Depth = 10 m × 3 m = 30 m². Discharge = 2 m/s × 30 m² = 60 m³/s.
Steps: 9
Show Steps
Step 1: Identify the velocity of the river, which is given as 2 m/s.
Step 2: Identify the width of the river, which is given as 10 m.
Step 3: Identify the depth of the river, which is given as 3 m.
Step 4: Calculate the area of the river using the formula: Area = Width × Depth.
Step 5: Substitute the values into the area formula: Area = 10 m × 3 m.
Step 6: Calculate the area: Area = 30 m².
Step 7: Use the discharge formula: Discharge = Velocity × Area.
Step 8: Substitute the values into the discharge formula: Discharge = 2 m/s × 30 m².
Step 9: Calculate the discharge: Discharge = 60 m³/s.
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