AP Physics B Question.

Test Preparation
1

<li>What is the difference in blood pressure (mm-Hg) between the top of the head and bottom of the feet of a 1.60-m-tall person standing vertically?</li>
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<p>This is supposedly a level 1 question. And I’m already stuck. I don’t know what formula to use. I tried using P=pgh, but I don’t know the density. Help?</p>

2

<p>1050kg/m^3 * 1.60m * 9.81m/s^2 = pascal *760mm Hg/101325 pa = 123.6~124mmHg less at the head than at the feet. I did a google search for blood.</p>