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Leona [35]
3 years ago
9

How do I find the net force=mass• acceleration with 9kg and 3 acceleration??

Physics
2 answers:
Irina-Kira [14]3 years ago
8 0

== Take the formula (net force) = (mass) · (acceleration)

== Erase the word "mass".  Write "9 kg" in the space.

== Erase the word "acceleration".  Write "9 m/s² " in the space.

== Do the multiplication indicated by the " · " in the formula.

== The result of the multiplication is " = " or "equal to" the net force.

sashaice [31]3 years ago
7 0
Mass = weight × acceleration
=9×3
=27 Newtow
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Answer:

the correct one is D,  

Ultraviolet, x-ray, gamma ray

Explanation:

Electromagnetism radiation are waves of energy that is expressed by the Planck relationship

          E = h f

where h is the plank constant and f the frequency of the radiation.

Also the speed of light is

          c = λ f

         

we substitute

          E = h c /λ

therefore to damage the cells of the body radiation of appreciable energy is needed

microwave radiation has an energy of 10⁻⁵ eV

infrared radiation                E = 10⁻² eV

visible radiation                   E = 1 to 3 eV

radiation Uv                         E = 3 to 6 eV

X-ray                                    E = 10 eV

 

gamma rays                         E = 10 5 eV

therefore we see that the high energy radiation is gamma rays, x-rays and ultraviolet light.

When checking the answers, the correct one is D

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2 years ago
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DIA [1.3K]
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yan [13]

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