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Illusion [34]
3 years ago
5

Newton’s Third Law of Motion states that when one object exerts a force on a second object, the forces are __________________.

Physics
1 answer:
Bezzdna [24]3 years ago
6 0
Out of the following choices, Newton's Third Law of Motion states that when one objects exerts a force on a second object, the forces are equal in magnitude and opposite in direction. 
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Which process is used to make low cost energy by nuclear power plant​
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Fission is used to make the low cost energy

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The resolving power of electron microscopes is much better than the resolving power of light microscopes because the wavelength
Misha Larkins [42]

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because the wavelength of electron beams is much shorter than the wavelength of visible light

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3 years ago
A nearsighted person wants to see an apple that is 7 meters away but can only clearly see objects that are at most 62 cm away fr
natulia [17]

Answer:

The power of the corrective lenses is 3.162 D.

Explanation:

Given that,

Object distance = 70 cm

Image distance = 62 cm

Distance between eyes and glasses = 2.5 cm

Eyeglasses made of diverging corrective lenses can help her to see the apple clearly

So now ,

Object distance from glass =70-2.5 = 67.5 cm

Image distance from glass = 62-2.5 = 59.5 cm

We need to calculate the focal length

Using formula for focal length

\dfrac{1}{f}=\dfrac{1}{v}+\dfrac{1}{u}

\dfrac{1}{f}=-\dfrac{1}{59.5}-\dfrac{1}{67.5}

\dfrac{1}{f}=-\dfrac{508}{16065}\ cm

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Using formula of power

P=\dfrac{100}{f}

P=-\dfrac{508}{16065}\times100

P=-3.162 \ D

Negative sign shows the lens is diverging.

Hence, The power of the corrective lenses is 3.162 D.

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3 years ago
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