The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of1.66 m, a width of 31.0 cm and a length of 21.5 cm.Calculate the power emitted by the human body.Submit Answer Tries 0/20What is the wavelength of the peak in the spectral distribution for this temperature?Submit Answer Tries 0/20Fortunately our environment radiates too. The human body absorbs this radiation with an absorbance of 97.0 percent, so we don't lose our internal energy soquickly. How much power do we absorb when we are in a room where the temperature is 24.0 °C?Submit Answer Tries 0/20How much energy does our body lose in one second?Submit Answer Tries 0/20

The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.66 m, a width of 31.0 cm and a length of 21.5 cm. Calculate the power emitted by the human body. Submit Answer Tries 0/20 What is the wavelength of the peak in the spectral distribution for this temperature?

The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.66 m, a width of 31.0 cm and a length of 21.5 cm. Calculate the power emitted by the human body. Submit Answer Tries 0/20 What is the wavelength of the peak in the spectral distribution for this temperature?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Quantum Physics

Section: Chapter Questions

Problem 6P

See similar textbooks

Similar questions

The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.77 m, a width of 33.0 cm and a length of 29.5 cm. 1. Calculate the power emitted by the human body. 2. What is the wavelength of the peak in the spectral distribution for this temperature? 3. Fortunately our environment radiates too. The human body absorbs this radiation with an absorbance of 97.0 percent, so we don't lose our internal energy so quickly. How much power do we absorb when we are in a room where the temperature is 26.0 °C? 4. How much energy does our body lose in one second? Please answer all four parts
The tungsten filament of an incandescent light bulb has a temperature of approximately 3000 K. The emissivity of tungsten is approximately 1/3, and you may assume that it is independent of wavelength. If the bulb gives off a total of 100 watts, what is the surface area of its filament in square millimeters?
A spherical surface of area 0.5m2, emissivity 0.85 and temperature 132°C is placed in a large, evacuated chamber whose walls are maintained at fixed temperature. Find the rate at which radiation is emitted by the surface? ( Stefan's constant σ = 5.67 x 10-8 W/m2T4 ) Energy radiated per second in watts =?
The intensity of solar radiation reaching the Earth is 1,340 W/m2. If the sun has a radius of 7.000 × 108 m, is a perfect radiator and is located 1.500 × 1011 m from the Earth, then what is the temperature of the sun?
What is the lowest temperature that will cause a blackbody to emit radiation that peaks in the infrared for each of the following? (Take the infrared band to lie between 0.3 mm and 0.00075 mm, where the middle of the band is its arithmetic mean.) extreme low end of the infrared band middle of the infrared band extreme high end of the infrared b All answers should be in K
The amount of radiant power produced by the sun is approximately 3.9 × 1026 W. Assuming the sun to be a perfect blackbody sphere with a radius of 6.96 × 108 m, find its surface temperature (in kelvins).
Earth’s surface absorbs an average of about 960. W/m2 from the Sun’s irradiance. The power absorbed is Pabs = (960. W/m2) (Adisc), where Adisc = π(RE)2 is Earth’s projected area. An equal amount of power is radiated so that Earth remains in thermal equilibrium with its environment at nearly 0 K. Estimate Earth’s surface temperature by setting the radiated power from Stefan’s law equal to the absorbed power and solving for the temperature in Kelvin. In Stefan’s law, assume e = 1 and take the area to be A = 4π(RE)2, the surface area of a spherical Earth. (Note : Earth’s atmosphere acts like a blanket and warms the planet to a global average about 30 K above the value calculated here.)
At what wavelength is the radiation emitted by the human body at its maximum? Assume a temperature of 37°C.
A spherical surface of area 0.6m2, emissivity 0.86 and temperature 112°C is placed in a large, evacuated chamber whose walls are maintained at fixed temperature. Find the rate at which radiation is emitted by the surface? ( Stefan's constant σ = 5.67 x 10-8 W/m2T4 ) Energy radiated per second in watts = (b) A wire of 5.25 cm, carrying current passes between the poles of a strong magnet that is perpendicular to its field and experiences a 2.28N force due to the field of strength 3.1. What is the current through the wire? the current through the…
(b) A spherical surface of area 0.7m2, emissivity 0.88 and temperature 120°C is placed in a large, evacuated chamber whose walls are maintained at a fixed temperature. Find the rate at which radiation is emitted by the surface?( Stefan's constant o = 5.67 x 10-8 W/m²Tª ) Energy radiated per second in watts =
158.0308=216.8(0.065+0.00053(T-293.15)) solve for T temperature
The radius of our Sun is 6.96 × 108 m, and its total power output is 3.85 × 1026 W. (a) Assuming the Sun’s surface emits as a black body, calculate its surface temperature. (b) Using the result of part (a), find λmax for the Sun