00:01
Here in this question first we can write down the given data that is the diameter is given that is 5 centimeter is equal to 0 .05 meter.
00:14
So the type of pipe is our galvanized iron pipe in which the volume of flow rate that is equal to theta dash is 350 liter per minute.
00:38
So we can convert it to per second.
00:41
So we can write theta dash is equal to 0 .35 meter cube per second divided by 60.
00:50
Now we can find out the length of pipe.
00:56
So length of pipe is equal to we applied a pythagoras theorem l is equal to 5 .25 square plus 2 .5 square.
01:12
So l is equal to 5 .81 meter.
01:16
Now we can find out the roughness of the pipe that is given in the question is 0 .15 millimeter.
01:29
Now we can find the value of roughness divided by diameter that is 0 .15 divided by 0 .05 into 10 to the power 3.
01:41
That is equal to 0 .003.
01:44
So we know that the volume flow rate that is equal to 0 .35 divided by 60 meter cube per second.
01:59
So the average value is equal to 0 .35 divided by 60...