How is heat transferred through empty space?
mafalexpicsak
Answered question
2022-10-30
Answer & Explanation
imperiablogyy
Beginner2022-10-31Added 13 answers
Energy can "move" in various ways:
- Conduction
- Convection
- Radiation
Radiation relies on propagation of Electromagnetic Radiation; basically waves, such as light, x-rays, u-v or infrared, are electromagnetic waves that transport energy.
These waves can travel through vacuum because they do not need a material medium (as in sound waves) to propagate but are a perturbation of the electromagnetic field.
Each wave will carry energy in the form of...packets called Photons (kind of a rain of "droplets" of light).
Each photon carries an energy:
E=hf
where:
f=frequency of the wave;
h=is Planck's Constant.
So you see that the higher the frequency the higher is the energy.
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ultrasound
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nanosound
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A.
B.
C.
D.A person has a hearing range from to . What are the typical wavelengths of sound waves in air corresponding to these two frequencies? Take the speed of sound in air as .
