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Zolol [24]
2 years ago
15

An apple and a stone dropped from certain height accelerates:Required to answer. Single choice.Immersive Reader

Physics
1 answer:
Vinvika [58]2 years ago
7 0

An apple and a stone dropped together from any height accelerate <em>equally.</em>

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A charge Q is uniformly spread over one surface of a very large nonconducting square elastic sheet having sides of length d. At
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Answer:

E/4

Explanation:

The formula for electric field of a very large (essentially infinitely large) plane of charge is given by:

E = σ/(2ε₀)

Where;

E is the electric field

σ is the surface charge density

ε₀ is the electric constant.

Formula to calculate σ is;

σ = Q/A

Where;

Q is the total charge of the sheet

A is the sheet's area.

We are told the elastic sheet is a square with a side length as d, thus ;

A = d²

So;

σ = Q/d²

Putting Q/d² for σ in the electric field equation to obtain;

E = Q/(2ε₀d²)

Now, we can see that E is inversely proportional to the square of d i.e.

E ∝ 1/d²

The electric field at P has some magnitude E. We now double the side length of the sheet to 2L while keeping the same amount of charge Q distributed over the sheet.

From the relationship of E with d, the magnitude of electric field at P will now have a quarter of its original magnitude which is;

E_new = E/4

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