what is the specific gravity of the patient? Hydrostatic weighing, or \"underwat
ID: 1595887 • Letter: W
Question
what is the specific gravity of the patient?
Hydrostatic weighing, or "underwater weighing, " is used to measure a patient's body composition. To do this measurement, the patient is weighed while standing on a regular scale and then weighed while immersed in water. By comparing these weights, the density and body fat percentage of a patient can be recorded. The weight of your patient on a regular scale is 640 N and while immersed in water is 90 N. The density of water is 1000 kg/m^3 and assume that g = 10 m/s^2.Explanation / Answer
mass of man - apparent mass of man = density of water x volume of man
65.306 -9.1836 = 1000 (V)
v of man = 0.056 m^3
density of man = mass / volume= 65.306 / 0.056 = 1166.178 kg/m^3
specific gravity = 1166.178/1000 = 1.166
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