Reference no: EM13287745
a) using the values of resistance for arm (400 ohm), leg (200), andtrunk(50), calculate the power dissipated in the arm, leg, andtrunk.
b) the specific heat of water is 4.18x10^3 J/kg(deg)C, so a mass ofwater M (in kilograms) heated by a power P (watts) undergoes a risein temp. at a rate given by:
dT/dt = (2.39x10^-4 P)/(M) degrees C/s
assuming that the mass of an arm is 4kg, the mass of a leg is 10kg,trunk 25kg, and that the human body is mostly water, how many seconds does it take the arm, leg, trunk to rise the 5 deg. C that endangers living tissue?
c) how do the values you computed in b compare with the few minutesit takes for oxygen starvation to injure the brain?
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