Recent content by Kcoats

In a measurement of a man's density he is found to have a mass of 58.9 kg in air and an apparent mass of 1.0 kg when completely submereged in water with his lungs empty. If his lung capacity is 1.9 liters, what is his density when his lungs are full? Correct answer: 985 kg/m^3 Okay...

Suppose a man is losing heat at a rate of 300 W. His body temperature is 1.5 deg C below normal, and he begins to shiver. If his mass is 65 kg, how many hours will it take for his temperature to rise to normal? Correct answer: 0.75 hrs General feedback: First determine how much energy is...

Trial and error. :) I figured out how to work it. Q=(4.5g)(540cal/g deg C)=2430 cal (1 cal/g deg C)(222g)(Tf-5 degC) + (.2 cal/g deg C)(122g) (Tf-5 deg C) (122cal/ deg C)(Tf-5 deg C) + (24.4 cal/deg C)(Tf-5 deg C)=246.4 cal/ deg c(tf-5 deg C) 2430 cal/246.4 cal/deg c=14.9 deg C

:confused: The formation of condensation on a cold glass of water will cause it to warm up faster than it would have otherwise. If 4.5 gm of water condenses on a 122 gm glass containing 222 gm of water at 5.0 deg C, what will the final temperature be? Ignore the effect of the surroundings...