![subject](/tpl/images/cats/fizika.png)
Physics, 22.11.2020 19:30 bennyanderson857
NEED PHYSICS EXPERT HELP!
Arteriosclerotic plaques forming on the inner walls of arteries can decrease the effective cross-sectional area of an artery. Even small changes in the effective area of an artery can lead to very large changes in the blood pressure in the artery and possibly to the collapse of the blood vessel.
Imagine a healthy artery, with blood flow velocity of v0=0.14m/s and mass per unit volume of ρ=1050kg/m3. The kinetic energy per unit volume of blood is given by
K0=12ρv20.
Imagine that plaque has narrowed an artery to one-fifth of its normal cross-sectional area (an 80% blockage).
QUESTION: Compared to normal blood flow velocity, v0, what is the velocity of blood as it passes through this blockage?
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 18:00
Awind turbine is initially spinning at a constant angular speed. as the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.173 rad/s2. after making 2870 revolutions, its angular speed is 132 rad/s. (a) what is the initial angular velocity of the turbine? (b) how much time elapses while the turbine is speeding up?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 01:10
Calculate 9 ∙ 10-5 divided by 3 ∙ 10-9. (box after the "10" in answer is for the
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 05:40
Whithin which type of system is neither the total mass nor the total energy conserved ? a. open b. connected c. isolated d. closed
Answers: 2
You know the right answer?
NEED PHYSICS EXPERT HELP!
Arteriosclerotic plaques forming on the inner walls of arteries can decre...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:50
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/fizika.png)
Physics, 20.04.2021 18:50
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:50
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:50
![question](/tpl/images/cats/es.png)
Spanish, 20.04.2021 18:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:50
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 18:50
![question](/tpl/images/cats/geografiya.png)
Geography, 20.04.2021 18:50