Question

http://assets.openstudy.com/updates/attachments/56ecf210e4b021ce9ad22f4d-ganeshie8-1458369053337-zzz.png

Answer 1

:D

Answer 2

it wont allow me to attach the pic in the main q haha

Answer 3

is this science mixed with math?

Answer 4

yes, applied math :)

Answer 5

I'm just going to guess for this, because I can't remember the laws at play.

Well \(I_P\) is when the distance is \(d\). Then if the distance distance is \(3d\) uses the formula: \[
(3d)^2I_{MP} = (d)^2I_P \implies I_{MP} = \frac{d^2}{9d^2}I_p=\frac{I_p}{9}
\]Add this to the already existing intensity and we have: \[
\frac{I_p}{9}+I_p = \frac{10}{9}I_p
\]So I would think \(10/9\).

Answer 6

that looks perfect!
yeah `1 + 10/9` is the answer, thanks :)

Answer 7

I got \(1+1/9=10/9\) though

Answer 8

`10/9` is the answer, sorry