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If it takes 5.0 hrs to drain a container of 540.0m\(^3\) of water, what is...

Physics
JAMB 1994

If it takes 5.0 hrs to drain a container of 540.0m\(^3\) of water, what is the flow rate of water from the container in kgs\(^{-1}\)? [Density of water = 1000kgm\(^{-3}\)]

  • A. 32.5kg-1 s
  • B. 31.5kg-1
  • C. 30.8kg-1 s
  • D. 30.0kg-1 s
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Correct Answer: Option D
Explanation

Flow rate = \(\frac{mass}{time}\)

= \(\frac{1000 \times 540}{5 \times 3600}\)

= 30.0kgs\(^{-1}\)

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