Answer to Question #282364 in Physics for ريشة

Question #282364

A person is 1.7 m height and in a bending position experiences upward acceleration. If the blood pressure difference between the brain and the heart is 8.8 kPa, what is the acceleration that he was experienced? (rblood = 1.1 g/cm3, height difference between heart and brain is 40 cm).

1
Expert's answer
2021-12-27T07:53:32-0500

1) Write the expression that defines how pressure depends on density, acceleration, and height:


p=ρhgtotal,p=ρh(g+a).p=\rho hg_\text{total},\\ p=\rho h(g+a).


2) Express the acceleration aa and calculate the value of the acceleration:


p=ρh(g+a),p=ρhg+ρha, a=pρhg, a=880011000.49.8=10.2 m/s2.p=\rho h(g+a),\\ p=\rho hg+\rho ha,\\\space\\ a=\dfrac{p}{\rho h}-g,\\\space\\ a=\dfrac{8800}{1100 ·0.4}-9.8=10.2\text{ m/s}^2.


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment