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xenn [34]
3 years ago
15

Microwave ovens heat food through the process of A) COnduction B) Convection C) Radiation D)Stratification

Physics
2 answers:
ICE Princess25 [194]3 years ago
7 0

Answer:

\huge \boxed{\mathrm{\bold{C.} \ Radiation}}

Explanation:

Microwaves heat food through the form of waves.

The waves are electromagnetic waves that transfer heat through the process of radiation.

Andru [333]3 years ago
5 0

Answer:

\huge\boxed{Radiation}

Explanation:

In microwave, there are waves called "microwaves" as per the name. So, The heating of food is done with the help of waves. Radiation is "the transfer of heat through waves". That is why the process of heating food in a microwave is "Radiation".

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Energy waves traveling at the speed of light are called _____.
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RADIATION

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Conduction is the heat transfer by contact, immediate contact.
Convection is the transfer of heat through air and water.
<span>Radiation is the transfer of heat regardless of the presence of atoms or particles.<span>
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3 years ago
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Historically, rhenium was alloyed to the tungsten in the filament of valve tubes to increase electron emission. What is the majo
ziro4ka [17]

Answer:

usually x-ray tube filaments are devices that limit the current flow i.e. current cannot easily pass through them or we can say that they are current limited devices. So to allow fine electron transmission control by filament heating current, rhenium must not be used in x-ray tube filaments.

8 0
3 years ago
What type of reaction requires the greatest energy to get started? A. fusion B. fission C. physical D. chemical
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3 years ago
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A proton is launched from an infinite plane of charge with surface charge density -1.10×10-6 C/m2. If the proton has an initial
Katyanochek1 [597]

The distance covered by the proton is 48.4 m

Explanation:

The electric field produced by an electrically charged infinite plane is given by

E=\frac{\sigma}{2\epsilon_0}

where in this case,

\sigma = -1.10\cdot 10^{-6} C/m^2 is the surface charge density

\epsilon_0 = 8.85\cdot 10^{-12} F/m is the vacuum permittivity

Substituting,

E=\frac{-1.10\cdot 10^{-6}}{2(8.85\cdot 10^{-12})}=-5.65\cdot 10^4N/C

And the direction is towards the plane (because the charge is negative).

The electric force on the proton due to this field is

F=qE

where

q=1.6\cdot 10^{-19}C is the proton charge

Substituting,

F=(1.6\cdot 10^{-19})(-5.65\cdot 10^4)=-9.0\cdot 10^{-15} N

where the direction is toward the plane.

Now we can calculate the proton's acceleration using Newton's second law:

a=\frac{F}{m}

where

m=1.67\cdot 10^{-27}kg is the proton mass

Substituting,

a=\frac{-9.0\cdot 10^{-15}}{1.67\cdot 10^{-27}}=-5.4\cdot 10^{-12} m/s^2

Now we can finally apply the following suvat equation for accelerated motion to find the distance travelled by the proton:

v^2-u^2=2as

where

v = 0 is the final velocity

u=2.40\cdot 10^7 m/s is the initial velocity

a is the acceleration

s is the distance covered

And solving for s,

s=\frac{v^2-u^2}{2a}=\frac{0-(2.4\cdot 10^7)^2}{2(-5.4\cdot 10^{12})}=53.3 m

Therefore, the closest answer is 48.4 m.

Learn more about accelerated motion:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

brainly.com/question/2562700

#LearnwithBrainly

5 0
3 years ago
In a series circuit, an ammeter shows the current leaving the positive end of a cell is 0.5A. What current flows into the negati
Evgesh-ka [11]

Answer:

0.5A as in a series circuit the current is the same everywhere

Explanation:

5 0
3 years ago
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