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Question:

Why and how pipe contraction and expansion cause energy loss in pipe?

I understand that friction and pipe fittings also influence the loss of energy. But why do contraction and expansion have influence on it as well? And how? Can someone explain the theory behind it or based on technical point of view? I cant fully understand the reason why.Thanks thanks thanks!

Answer:

it is okay i'm no longer lots of partial to information with dragons, so per risk it is purely me yet i think of it is lacking a sprint extra element to hold my activity. you apart from mght have some grammatical errors. interior the line: Of coarse, got here the reaction. it may be 'direction' extremely of 'coarse'. i desire my enter helps.
Definitely use some more descriptive words, like don't tell us about it, SHOW us the images, feelings, and if there is any, blood always makes it more interesting. Also, try not to go too cliche, but what works works. This sometimes works fo rme, but read it out loud in a voice that rises and falls naturally, like you're narrating the scene. It can help you tell where you could use some more detail.
In one horrifying case, my friend exposed me to a homemade video of a tragic death. A women got out of her car because it had broke down on the side of the road, her friend remained in the car as she got out to check for damages, as she opened her phone to text for help, there was a car heading her way, The driver appeared to be leaning over the passenger side reaching for something. All of a sudden he looked up, and noticed he was about to run into this lady. He was not able to stop his car The car went screaching down the highway as he tried to pull the emergency break. . As she closed her phone, she looked up, all she could see is headlights coming her way, there was nothing she could do, as the car came closer and closer BAM!..the car had collided into her car. The driver was shocked as she saw her friend unconscious in the passenger’s seat. Rescue workers came with the jaws of life and tried pulling the dented car door out so they could get everyone in the car to the hospital in time. Unfortunantly the driver who ran into the womens car had died on the scene, along with his family. And in the back seat was a baby bottle that the man was reaching over for.
Take your argument to your city council. They take any complaints into consideration if citizens have suggestions or problems with the way things are done. Just make sure you get the information such as the phone number, address, and file your complaint to them. Also if there is a town hall meeting anytime soon you may want to attend that and voice your opinion there, but city council is usually the place you want to file complaints.
Rescue workers came and tried yanking the dented car door out so they could get everyone in the car to the hospital in time. Unfortunately, a baby and the parents from the other car remained unresponsive. The lady who caused the incident greatly regretted her tragic mistake. rescue workers came and began to break away at the wreckage in order to get the frightened and trapped passengers out of the car and to the hospital in time I would also describe the impact and the crash, since u seemed to leave that part out, perhaps the car slamming into them caused the car to skid foward while one or the other of the cars dragged some fenders. other than that, its not terrible, but you definetely could use some more interesting words. dented just kinda seems like something bumped it lol. crumpled or torn will lure the reader better.

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