Answer:
what do you mean by this?
Explanation:
2ω is the resistance of the second wire if the resistance of the first is 4ω if two wires have the same length, but the second has twice the diameter of the first.
R= 4ω.
R = ρl/A
2d=r
R2=2ω
Resistance is the capacity of a conductor to obstruct the passage of an electric current through it. It is controlled by the interaction of the applied voltage and the electric current passing through it.
Conductors have very little resistance, whereas insulators have a significant amount of resistance. The resistance increases as the current flow decreases. Resistance is influenced by the properties and dimensions of the material (area of cross section)
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Answer:
p=1
Explanation:
Well me know that v=m/s
and that a=m/s^2
so

Note: We don't take into account 2 because it's a scalar, it doesn't have units so it doesn't add anything to the equation.
<span> A pure substance is an material which contains atoms of only one kind.
It has fixed physical and chemical properties such as boiling point, melting point, valency, density and more.</span>
I'll put my answer in the comments but, part of the question is cut off do you mind putting a more readable and not sideways picture?