3 years ago

How do i make someone like me before they talk to me

Physics

1 answer:

pogonyaev3 years ago

8 0

Be easy-going and be yourself.

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draw a labelled ray diagram to locate the image of an object formed by a convex lens of focal length 20cm when the object is pla

azamat

<h3><u>Answer</u> :</h3>

<u>Focal length of convex lens is taken positive.</u>

$:\implies\sf\:\dfrac{1}{v}-\dfrac{1}{u}=\dfrac{1}{f}$

$:\implies\sf\:\dfrac{1}{v}-\dfrac{1}{(-30)}=\dfrac{1}{20}$

$:\implies\sf\:\dfrac{1}{v}=\dfrac{1}{20}-\dfrac{1}{30}$

$:\implies\sf\:\dfrac{1}{v}=\dfrac{3-2}{60}$

$:\implies\:\boxed{\bf{\gray{v=60\:cm}}}$

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3 years ago

Which components are part of all types of scientific investigations

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Force of friction=75 N

Explanation:

we use Newton's second law of motion

F- Ff= ma

F = applied force=250 N

Ff= force of friction

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250- Ff= 30 (5.83)

Ff=250-30(5.83)

Ff=250-175

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