The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the humar body by a rectangular block with a height of 1.98 m, a width of 35.5 cm and a length of 26.5 cm. Calculate the power emitted by the human body. 1.311x10³ W You are correct. Your receipt no. is 157-4629 Previous Tries What is the wavelength of the peak in the spectral distribution for this temperature? 8.56x10^-5m Hint: Use Wien's displacement law. Submit Answer Incorrect. Tries 3/12 Previous Tries Fortunately our environment radiates too. The human body absorbs this radiation with an absorbance of 97.0 percent, só 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 20.5 °C? 625.36W Hint: Use the Stefan-Boltzmann law again. Submit Answer Incorrect. Tries 1/12 Previous Tries How much energy does our body lose in one second? Submit Answer Tries 0/12

The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the humar body by a rectangular block with a height of 1.98 m, a width of 35.5 cm and a length of 26.5 cm. Calculate the power emitted by the human body. 1.311x10³ W You are correct. Your receipt no. is 157-4629 Previous Tries What is the wavelength of the peak in the spectral distribution for this temperature? 8.56x10^-5m Hint: Use Wien's displacement law. Submit Answer Incorrect. Tries 3/12 Previous Tries Fortunately our environment radiates too. The human body absorbs this radiation with an absorbance of 97.0 percent, só 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 20.5 °C? 625.36W Hint: Use the Stefan-Boltzmann law again. Submit Answer Incorrect. Tries 1/12 Previous Tries How much energy does our body lose in one second? Submit Answer Tries 0/12

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: A 100-WW incandescent light bulb has a cylindrical tungsten filament 35.0 cm long, 0.41 mmmm in…

A: The given problem is based on Stefan-Boltzmann law and wine's displacement law. Stefan laws stated…

Q: Give an example of an application that involves the absorption of X-rays. Describe what happens on a…

A: X-rays are produced by bombarding a heavy metal target with high energy electrons. Choice of heavy…

Q: The energy-level diagram for the atomic emission spectra of an unknown gas is presented in the…

A: Given : The energy-level diagram for the atomic emission spectra of an unknown gas is shown :…

Q: X rays are generated by accelerating electrons through a large potential difference AV and allowing…

A: Given:target used is tungsten, hence its atomic number, Z = 74the potential difference, ΔV = 60 kV =…

Q: An electrical discharge in a neon-filled tube maintains a steady population of 2.40 x 10° atoms in…

Q: Calculate frequency of the radiation to transfer electron as particle in the box from n =2 to n…

A: The length of the box is given as, L=1000 pm (or) L=1000×10-12 m (or) L=10-9 m. The initial energy…

Q: A perfect black body has its surface temperature 27 cº Determine : Maximum radiation wavelength?…

Q: Q.4. Uranium dioxide (UO,)is an oxide of uranium used in nuclear fuel rods in nuclear reactors.…

A: The mass attenuation coefficient is defined as; Where μ be defined as the attenuation coefficient.…

Q: The wavelength of maximum solar emission is observed to be approximately 0.475 μm. What is the…

A: A blackbody is an object that is capable of absorbing all the radiation that falls on it. It then…

Q: Answer the following. (a) What is the surface temperature of Betelgeuse, a red giant star in the…

A: Write the expression for Wien's displacement law. λmaxT=bλmaxT=2898 μm⋅K Here, λmax is the peak…

Q: I Review | Constants | Periodic Table he human eye can barely detect a star whose intensity at the…

A: Intensity , I = 1.6 x 10-11 W/m2 Radius of pupil , r = 3 mm = 3 x 10-3 m Wavelength , λ = 550 nm…

Q: Your body would be okay if the body was exposed to the red laser with the a few mW/cm2 power…

A: Givenour body would be okay if the body was exposed to the red laser with the a few mW/cm2 power…

Q: 1a. Calculate the speed that a gas-phase nitrogen molecule, N2, would have if it had the same energy…

A: a)Write the expression for the energy and substitute the corresponding expressions to obtain the…

Q: The intensity of blackbody radiation peaks at a wavelength of 588 nm. (a) What is the temperature…

A: Given The blackbody radiation peaks at the wavelength λm=613 nm=613×10-9 m Formula To solve the…

Q: The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and…

A: “Since you have asked multiple questions, we will solve the first question for you. If youwant any…

Q: The energy-level diagram for the atomic emission spectra of an unknown gas is presented in the…

A: There are 2 absorption lines. One is from n=1 to n = 3 and another is from n=2 to n=4 because the…

Q: The surface temperature of the sun is approximately 5,800 K. However, stars can be much hotter. WR…

Q: he count rate for a particular a source X is C0 on a detector placed 1 m from the source. When a…

A: Given that: x=5 mm C=(1-0.75) C0=0.25C0

Q: The best multi-junction solar cells have an efficiency of about 40% for converting light energy from…

A: Given information: The efficiency of the Solar Cell (η) = 40% = 0.4 The Power consumed by the US (P)…

Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 6.0 x 10-6 m (0.0000060 m).…

A: Given -. The wavelength = 6*10^-6 m To find -. The temperature inside the…

Q: Question A5 A metal oxide is investigated separately by X-ray and neutron diffraction. At room…

A: a) Approach to solving the question:Understand the key observations from the information…

Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 6.4 x 10-6 m (0.0000064 m).…

A: Given: The peak wavelength is 6.4x10-6 m.

Q: The count rate for a particular a source X is C0 on a detector placed 1 m from the source. When a…

Q: The blackbody radiation emitted from a furnace peak at a wavelength of 5.0 10-6 m (0.0000050 m).…

A: Given data λ=5×10-6 m

Q: Part A: If X=2.44 micrometers, what is the surface temperature of object A? Enter the numerical…

A: (a) From the graph, the maximum intensity of radiation from object A occurs at X. λpeak=X Here,…

Q: True or False UV light have a high ability to move through materials such as glass, paper, pus,…

A: True or False

Concept explainers

Energy transfer

The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.

Molar Specific Heat

Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)

Thermal Properties of Matter

Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.

Question

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 1.98 m, a width of 35.5 cm and a length of 26.5 cm.
Calculate the power emitted by the human body.
1.311x10³ W
You are correct.
Your receipt no. is 157-4629
Previous Tries
What is the wavelength of the peak in the spectral distribution for this temperature?
8.56x10^-5m
Hint:
Use Wien's displacement law.
Submit Answer Incorrect. Tries 3/12 Previous Tries
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 20.5 °C?
625.36W
Hint:
Use the Stefan-Boltzmann law again.
Submit Answer Incorrect. Tries 1/12 Previous Tries
How much energy does our body lose in one second?
Submit Answer Tries 0/12

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

For CCI4, the viscosity at 0 ° C is 1.33 x 10-3 kg m-1 s-1 and the activation energy is 10.9 kJ mol-1? Estimate the viscosity at 30 ° C.
I Review I Constants Part A It is increasingly common to check a person for a fever by measuring the temperature of the forehead with a noncontact infrared thermometer. A person with a normal body temperature has a forehead temperature of about 33°C. This increases to 36°C or higher for a person who has a fever. In principle, an infrared thermometer could measure either the peak wavelength or the radiated power of the thermal emission because both depend on the object's temperature. What is the percent decrease in the peak wavelength if a person's forehead temperature increases from 33° C to 36° C? Express your answer as a percentage. ? % Submit Request Answer Part B The total radiated power depends on an object's surface area, but the radiated power per unit area depends on only the object's temperature and its emissivity. The emissivity of human skin is 0.97. What is the percent increase in the radiated power per unit area if a person's forehead temperature increases from 33°C to 36°…
Assume the intensity of solar radiation incident on the cloud tops of the Earth is 1 677 W/m². (a) Taking the average Earth-Sun separation to be 1.496 x 10¹1 m, calculate the total power radiated by the Sun. 4.905E26 x Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. W (b) Determine the maximum value of the electric field in the sunlight at the Earth's location. kv/m (c) Determine the maximum value of the magnetic field in the sunlight at the Earth's location. μT
The conversion between electron-volts and joules is 1 eV=1.60x10^-19 J . The work function for silver is 7.43 x 10^-19 . What is the work function for silver expressed in electron-volts?
The energy-level diagram for the atomic emission spectra of an unknown gas is presented in the diagram below. n = 4 4.0 ev n = 3 1.8 eV n = 2 1.5 ev n=1 O ev Part A Initially, electrons are only in the ground state (n=1). A beam of red light hits the gas. This beam is a continuous spectrum of red light (from 620 nm to 750 nm) How many absorption line/s will there be in the spectra? 1 Correct Part B Initially, electrons are only in the ground state (n=1). A beam of red light hits the gas. This beam is a continuous spectrum of red light (from 620 nm to 750 nm) Calculate the wavelength of the absorption line ? da = nm Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining
B4. A bone sample has a density p = 1.2x10³ kg/m³, a molar mass m = 217 g/mol and an interaction cross section per atom o = 6.0x10-22 cm². Determine the linear attenuation coefficient µ (in cm-¹) and the half value layer (in cm). Assume there is no scattering when the radiation interacts with the bone sample. Express the values to 3 significant figures, if necessary.
After you calibrate the SpectroVis Plus spectrometer, you must a. run a full spectrum by selecting Sensors/Calibrate/Full Spectrum. O b. change the mode by selecting Sensors/Time-Based. Oc. collect a full spectrum of the sample to determine the wavelength of maximum absorbance. O d. change the mode by selecting Sensors/Data Collection.
Your pupils dilate when visible light intensity is reduced. Does wearing sunglasses that lack UV blockers increase or decrease the UV hazard to your eyes? Explain.
A pulsed laser produces brief bursts of light. One such laser emits pulses that carry 0.400 J of energy but last only 300 fs . Part A What is the average power during one of these pulses? Pav = 1.33x1012 W Submit Previous Answers Correct Part B Assuming the energy is emitted in a cylindrical beam of light 2.10 mm in diameter, calculate the average intensity of this laser beam. ? Iay = W/m? Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part C What is the rms electric field in this wave? ? Erms = V/m Submit Request Answer