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Serjik [45]
3 years ago
5

Select the correct answer.

Physics
2 answers:
umka2103 [35]3 years ago
7 0

Hi,

The answer you are looking for is

A.  

a person carrying a box from one place to another

This is because the box is being carried at a constant velocity so, there is no force it needs to keep it it motion.

Have a great day!

ivolga24 [154]3 years ago
4 0

I Believe the answer is Carrying the box because he isnt using any force like having to (Pick up) , (Pushing) or (Pulling).

Hope this Helps Dante -

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Nana76 [90]

Answer:

The answer to the question is as follows

The  acceleration due to gravity for low for orbit is  9.231 m/s²

Explanation:

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Where F_{G} = Gravitational force

G = Gravitational constant = 6.67×10⁻¹¹\frac{Nm^{2} }{kg^{2} }

m₁ = mEarth = mass of Earth = 6×10²⁴ kg

m₂ = The other mass which is acted upon by  F_{G} and = 1 kg

rEarth = The distance between the two masses = 6.40 x 10⁶ m

therefore at a height of 400 km above the erth we have

r = 400 + rEarth = 400 + 6.40 x 10⁶ m = 6.80 x 10⁶ m

and  F_{G} = \frac{6.67*10^{-11} *6.40*10^{24} *1}{(6.8*10^{6})^{2} } = 9.231 N

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9.231/1 or 9.231 m/s²

Therefore the acceleration due to gravity at 400 kn above the Earth's surface is  9.231 m/s²

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3 years ago
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Answer:

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Explanation:

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In the second case of image formation , v becomes u and u becomes v only then image formation in the second case is possible.

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Explanation:

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\epsilon=Blv

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E=\dfrac{\epsilon}{l}\\\\E=\dfrac{Blv}{l}\\\\E=Bv

It is clear that the electric field is independent of the length of the rod. If the length of the rod is doubled, the electric field in the rod remains the same.

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