Question

A water pipe has a circular cross-section of radius 0.75cm.
Water flows through the pipe at a rate of 16 cm/s.
Calculate the time taken for 1 litre of water to flow through the pipe

Answer 1

Answer:

GIVEN : The inner radius of tap 0.75 cm

GIVEN : The inner radius of tap 0.75 cm The water flows at the rate of 7 m per second

GIVEN : The inner radius of tap 0.75 cm The water flows at the rate of 7 m per secondRequirement : Vol of water in Litres delivered by the pipe in an hour

GIVEN : The inner radius of tap 0.75 cm The water flows at the rate of 7 m per secondRequirement : Vol of water in Litres delivered by the pipe in an hourArea of cross section =(22*0.75 *0.75 )/7

GIVEN : The inner radius of tap 0.75 cm The water flows at the rate of 7 m per secondRequirement : Vol of water in Litres delivered by the pipe in an hourArea of cross section =(22*0.75 *0.75 )/7Vol of water delivered per second = (22*0.75 *0.75*700 )/7 = 1237.5 cm3   [since 7m = 700cm]

GIVEN : The inner radius of tap 0.75 cm The water flows at the rate of 7 m per secondRequirement : Vol of water in Litres delivered by the pipe in an hourArea of cross section =(22*0.75 *0.75 )/7Vol of water delivered per second = (22*0.75 *0.75*700 )/7 = 1237.5 cm3   [since 7m = 700cm]1 hour = 60* 60 = 3600 seconds

GIVEN : The inner radius of tap 0.75 cm The water flows at the rate of 7 m per secondRequirement : Vol of water in Litres delivered by the pipe in an hourArea of cross section =(22*0.75 *0.75 )/7Vol of water delivered per second = (22*0.75 *0.75*700 )/7 = 1237.5 cm3   [since 7m = 700cm]1 hour = 60* 60 = 3600 secondstherefore , water delivered by the pipe in a hour= 1237.5 cm3 * 3600 = 4455000 cm3

GIVEN : The inner radius of tap 0.75 cm The water flows at the rate of 7 m per secondRequirement : Vol of water in Litres delivered by the pipe in an hourArea of cross section =(22*0.75 *0.75 )/7Vol of water delivered per second = (22*0.75 *0.75*700 )/7 = 1237.5 cm3   [since 7m = 700cm]1 hour = 60* 60 = 3600 secondstherefore , water delivered by the pipe in a hour= 1237.5 cm3 * 3600 = 4455000 cm31 litre = 103 cm3 

GIVEN : The inner radius of tap 0.75 cm The water flows at the rate of 7 m per secondRequirement : Vol of water in Litres delivered by the pipe in an hourArea of cross section =(22*0.75 *0.75 )/7Vol of water delivered per second = (22*0.75 *0.75*700 )/7 = 1237.5 cm3   [since 7m = 700cm]1 hour = 60* 60 = 3600 secondstherefore , water delivered by the pipe in a hour= 1237.5 cm3 * 3600 = 4455000 cm31 litre = 103 cm3 Therefore, the quantity of water in litres = 4455000 cm3/103 cm3 = 4455 litres

GIVEN : The inner radius of tap 0.75 cm The water flows at the rate of 7 m per secondRequirement : Vol of water in Litres delivered by the pipe in an hourArea of cross section =(22*0.75 *0.75 )/7Vol of water delivered per second = (22*0.75 *0.75*700 )/7 = 1237.5 cm3   [since 7m = 700cm]1 hour = 60* 60 = 3600 secondstherefore , water delivered by the pipe in a hour= 1237.5 cm3 * 3600 = 4455000 cm31 litre = 103 cm3 Therefore, the quantity of water in litres = 4455000 cm3/103 cm3 = 4455 litresThus, the volume in litres of water delivered by the pipe in a hour = 4455 litres.

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Answer 2

The time taken for 1 litre of water to flow through the pipe=35.34 s

Step-by-step explanation:

Radius of pipe=0.75 cm

Water flows in 1 sec=L=16cm

Volume of water flows in 1 sec=$\pi r^2 h$

Where h=Length of pipe

r=Radius of pipe

$\pi=\frac{22}{7}$

Using the formula

Volume of water flows in 1 sec=$\frac{22}{7}\times (0.75)^2(16)=28.29 cm^3$

We know that $1000cm^3=1L$

$1 cm^3=\frac{1}{1000} L$

$28.29 cm^3=\frac{28.29}{1000}=0.0283 L$

0.0283 L flows in 1 sec.

Time taken for 1 litre of water to flow through the pipe=$\frac{1}{0.0283}=35.34 s$

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https://brainly.in/question/2340379:Answered by Ragib