Physics, 06.05.2020 07:11 yadi64

The basal metabolism of a human adult is the total rate of energy production when a person is not performing significant physical activity. It has a value around 125 W, most of which is lost by heat conduction to the surrounding air and especially to the exhaled air that was warmed while inside the lungs. Given this energy production rate, it would seem impossible for a human body to radiate 460 W as you calculated in the previous part. Which of the following alternatives seems to best explain this conundrum?

a. The human body is quite reflective in the infrared part of the spectrum (where it radiates) so is in fact less than 0.1.
b. The surrounding room is near the temperature of the body and radiates nearly the same power into the body.

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 04:50

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

Answers: 2

Answer

Physics, 22.06.2019 04:50

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

Answers: 1

Answer

Physics, 22.06.2019 06:00

An ideal gas is held in a container at constant volume. initially, its temperature is 5 degrees c and its pressure is 1.2 atm. what is its pressure when its temperature is 43 degrees c? answer in units of atm

Answers: 2

Answer

Physics, 22.06.2019 11:00

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.

Answers: 1

Answer

You know the right answer?

The basal metabolism of a human adult is the total rate of energy production when a person is not pe...

Questions