The electrical resistance of a wire varies as its length and inversely as the square of the diameter.
R = (k*L)/(d^2)
where k = proportionality constant
Since the two wires have the same material, their proportionality constant is same.
Equating that
(R1*d1^2)/L1 = (R2*d2^2)/L2
Given that R1 = 10 ohms, d1 = 1.2 mm or 0.0012 m, L1 = 18 m, d2 = 1.5 mm or 0.0015 m, L2 = 27 m, and R2 is unknown.
Therefore
[10*(0.0012^2)]/18 = [R2*(0.0015^2)]/27
R2 = 9.6 ohms
Answer:
i love brent faiyaz
Step-by-step explanation:
there you are
By reducing!
sorry lol!!!!
Answer:
Step-by-step explanation:
slope=(9-3)/(-7-6)=-6/13
reqd eq. of line is
y-3=-6/13(x-6)
So, 1725 would be 1 and a half month's pay of rent.
The equation would be 1725 divided by 1.5 since that would get us what the two friends paid for one month of rent. Let r= rent.
1725/1.5= r
1725/1.5= 1150
So, rent would equal $1150.
I hope this helps!
~cupcake
