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2 years ago

Plz help me with this!

Physics

1 answer:

vagabundo [1.1K]2 years ago

7 0

A conductor is something which allows electricity to pass through it
an example is a coin
An insulator is something which cannot allow electricity to pass through it
an example is plastic (or plastic cotton reel, plastic container ect.)
Static electricity is when you rub two things together to create static

I'm not sure if i helped on the last question but i am definitely sure of the first ones

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How many Sig Figs (Significant Figures) are in each number? 5070.0 870.064080

nlexa [21]

∑ Hey, Lethality ⊃

Answer:

5070.0 has 5 significant figures

870.064080 has 9 significant figures

Explanation:

Given:

How many Sig Figs (Significant Figures) are in each number?

5070.0

870.064080

Solution:

-------------------------------------------------------------------------------------------------------------

5070.0

5070.0 has 5 significant figures ( 5 , 0 , 7 , 0 , and 0 )

Number of significant figures: 5

-------------------------------------------------------------------------------------------------------------

870.064080

870.064080 has 9 significant figures ( 8, 7 ,0,0, 6,4,0,8 and 0 )

Number of significant figures: 9

-------------------------------------------------------------------------------------------------------------

xcookiex12

8/23/2022

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1 year ago

If an object is not moving are the forces acting on it balanced? Yes or no?why?

xxMikexx [17]

This is another time to look at Newton's 2nd law of motion:

Net Force = (mass) x (acceleration)

If the object is not moving, then its acceleration is certainly zero, and Newton's law looks like this:

Net Force = (mass) x (zero)

or Net Force = (zero) .

"Net Force = zero" means that if there ARE any forces acting on the object, then they add up to zero, and we call them "balanced" forces.

So the answer is 'yes', and that's why.

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