Question
Asked Nov 14, 2019
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A gardener feels it is taking too long to water a garden with a 0.35-in.-diameter hose.

By what factor will the time be cut using a 0.53-in.-diameter hose instead? Assume nothing else is changed

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Expert Answer

Step 1

The volume flow rate (Q)

t
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t

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Step 2

Expression for the volume flow rate (Q)

Pr
8171
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Pr 8171

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Step 3

Compare the above expressions, the volume flow rate is directly proportional to the fourth power of radius of hose (r) and volume flow rate...

d
2
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d 2

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