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ApplicationsThe effect of flight maneuvers on the heart
Chapter 3, Problem 61E(choose chapter or problem)
Problem 61E
Applications
The effect of flight maneuvers on the heart The amount of work done by the heart’s main pumping chamber, the left ventricle, is given by the equation
where W is the work per unit time, P is the average blood pressure, V is the volume of blood pumped out during the unit of time, (“delta”) is the weight density of the blood, is the average velocity of the exiting blood, and g is the acceleration of gravity. When P, V, δ and v remain constant, W becomes a function
of g, and the equation takes the simplified form
As a member of NASA’s medical team, you want to know how sensitive W is to apparent changes in g caused by flight maneuvers, and this depends on the initial value of g. As part of your investigation, you decide to compare the effect on Wof a given change dg on the moon, where with the effect the same change dg would have on Earth, where Use the simplified equation above to find the ratio of
Questions & Answers
QUESTION:
Problem 61E
Applications
The effect of flight maneuvers on the heart The amount of work done by the heart’s main pumping chamber, the left ventricle, is given by the equation
where W is the work per unit time, P is the average blood pressure, V is the volume of blood pumped out during the unit of time, (“delta”) is the weight density of the blood, is the average velocity of the exiting blood, and g is the acceleration of gravity. When P, V, δ and v remain constant, W becomes a function
of g, and the equation takes the simplified form
As a member of NASA’s medical team, you want to know how sensitive W is to apparent changes in g caused by flight maneuvers, and this depends on the initial value of g. As part of your investigation, you decide to compare the effect on Wof a given change dg on the moon, where with the effect the same change dg would have on Earth, where Use the simplified equation above to find the ratio of
ANSWER:
Solution:
Step 1 of 2
In this problem, we have to find the ratio of to
.