Physics, 27.06.2019 08:00 mahnoorkeen0

The width of a pipe influences the flow of water. true or false

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Answer from: YoVeoAnime

True

Explanation:

By width, we commonly mean the diameter of the pipe. Before, giving some logical examples we will look at the scientific proof of this fact. There was a physicist named Jean Leonard who experimented on fluid flow during the start of 19th century, He deduced the results as the flow rate is proportional to the fourth power of pipe radius,

His results can mathematically be expressed as :

Volume flow rate = π X pressure difference X pipe radius 4 X liquid viscosity / 8 X viscosity X pipe length.

Now let us take an example which shows how pipe diameter or radius (half of diameter) affect the flow of water.

Lets suppose we have a pipe that has radius of 2 inches and length of 6 and we want to calculate that what will be the the flow rate if we increase the length of pipe from 2 to 4 inches. When the length is constant, the radius has also got changed by 2 inches.

So, if we assume that temperature, pressure and length is constant and no external factor is affecting the water flow, then according to above equation the flow rate will change by a factor of 24, or 16.

This shows that the width or radius influence flow rate of water.

Hope it help!

Answer from: Quest

sleep paralysis is a parasomnia, events associated with sleep.

sleep paralysis happens when you are in the middle of waking up or falling asleep. it is the feeling of being conscious but unable to move. it definitely involves hallucinations.

i had a friend that had sleep paralysis and he told me a story one time where he was laying in bed and he couldn't move his body no matter how hard he tried and there was someone standing in the corner of his room coming towards him. he couldn't move and you can't "wake up" because you are already conscious. sometimes sleep paralysis can be triggered by frequent waking up during the night based off of multiple trips to the bathroom, or if you had ever been abused, sleep paralysis can start happening from things like that.

Answer from: Quest

terd muffin is the correct answer

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