ICSE Class 8 Answered
Water is being pumped out through a circular pipe whose internal diameter is 7cm. If the flow of water is 12cm/s,how many liters of water is being pumped out in an hour
Asked by pandeymansi72 | 04 Mar, 2019, 07:29: PM
Expert Answer
water flow rate (cm3 / s ) = cross section area ( cm2 ) × speed of water flow ( cm/s )
= ( π×3.5×3.5)×( 12 ) ≈ 462 cm3 /s
volume of water collected in 1 hour = 462×3600/1000 ≈ 1662 litre
( conversion of cm3 to litre : 1000 cm3 = 1 litre is used )
Answered by Thiyagarajan K | 04 Mar, 2019, 08:33: PM
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