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alekssr [168]
4 years ago
9

Heat transfer that doesn’t need a medium? A) Radiation B)Convection C)Conduction

Physics
2 answers:
Degger [83]4 years ago
8 0
Radiation is a method of heat transfer through electromagnetic waves. This transfer does not require a medium in order for heat to be transferred.

The solution is A.
Rufina [12.5K]4 years ago
6 0
The correct answer is A  
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Use this technique to find a formula for the intensity I of a sound, in terms of the sound level β and the reference intensity I
mezya [45]

The problem is basically asking us to find a way to find the sound intensity I, in terms dependent on the sound level and the reference intensity I_0.For this purpose we can start from the unit used in the scale logarithmic decibel, that is

\beta = 10log_{10}\frac{I}{I_0}

Where

I = Acoustic intensity on the linear scale

I_0 = Hearing threshold

Using the logarithmic properties of the exponents the above expression can be described as:

(\frac{I}{I_0})^{10} = 10^{\beta}

I = I_0 10^{\frac{\beta}{10}} \righarrow that is the expression or technique to find the intensity of sound.

8 0
3 years ago
F each fission reaction in a nuclear reactor emits three neutrons, how many neutrons are produced from three fission reactions?
IrinaK [193]

The Three fission reactions will produce nine neutrons

<h3>Meaning of Fission</h3>

Fission can be defined as a nuclear process that involves the breaking of a whole nuclear matter into smaller bits.

In a fission reaction, the matter is broken down into simpler bits.

In conclusion, The Three fission reactions will produce nine neutrons

Learn more about fission:brainly.com/question/3992688

#SPj1

8 0
2 years ago
Where does most of the oxygen at earth reside?
Lady_Fox [76]
Well most of the earth's oxygen resides in mineral oxides of the crust. a small fraction resides in the atmosphere and an even smaller fraction resides in the biosphere. still the biosphere is crucial to understanding the atmospheric oxygen budget as it controls short term exchanges between sediments and the atmosphere.
4 0
3 years ago
When two balanced forces cancel each other, they are in?
emmainna [20.7K]
The forces are in equilibrium.
7 0
4 years ago
The sources of marine debris and explain why it is a problem with global origins
Lera25 [3.4K]
Marine debris is any trash or litter that ends up in a marine environment. This harms wildlife through entanglement, ingestion, and disturbs the habitat of many species of animals. This becomes a global problem when it is a danger to human health. Nails, syringes, and glass can cause harm to people on the beach. On top of that, trash in the waterway increases the amount of chemicals destroying our water quality.
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4 0
3 years ago
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