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Category > Physics Posted 08 Jul 2017 My Price 4.00

part one

part one

The diameter of a blood vessel narrows by 70% due to the

presence of a plaque on the blood vessel walls. By what factor does the blood velocity increase (compared to the intitial)?

part two

The diameter of a blood vessel narrows by 70% due to the

presence of a plaque on the blood vessel walls. If the blood velocity in a normal blood vessel is 0.15 m s−1

and the systolic blood pressure is 130 mmHg, what is the systolic blood pressure in the narrowed vein (in mmHg)?

Note: 1 mmHg = 133.32 Pa

 

**bonus points if you answer this other question**(not required)

A small plastic pipe carries water horizontally at a speed of

10 m s−1. A section of the pipe bulges out so that the radius is twice

that of the rest of the pipe. If the gauge pressure in the pipe is ordi-

narily+90 kPa what is the gauge pressure in the bulge (in kPa) (the density of water is 1000 kg m−3)? Give your answer in kPa.

Answers

SuperTutor
(15)
Status NEW Posted 08 Jul 2017 01:07 AM My Price 4.00

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