Question

1)the electrical resistance for a conductor can be found by the formula R=KL/D^2.solve the formula for L

Answer 1

where is the rest of it?

Answer 2

@gulapipry has everything to solve this problem.

I'll give you a hint, suppose you want to solve for x here: \[\Large a=bx \\ \Large \text{ } \\ \Large \frac{a}{b}=x\] We just divided both sides by b to get x by itself. If be had b on the bottom, dividing x instead, we could multiply both sides by b to get x by itself too.

Answer 3

have you tried anything after what @Kainui said?
we want to isolate L on the right hand side

Answer 4

yes, this one is very difficult for me

Answer 5

how about starting with dividing both side by K
what would we get?

Answer 6

okay let's right that down \[\frac{R}{K}=\frac{KL}{KD^2}\]
what do you think we should do from here

Answer 7

cross out

Answer 8

not yet first let's take care of k

Answer 9

cross multiply

Answer 10

eh you just want to cross multiply lol

Answer 11

k/k is equal to what?

Answer 12

I don't know

Answer 13

what a number divided by itself equal to?

Answer 14

I don't know

Answer 15

maybe factor

Answer 16

hmm
how about 2/2 for example?

Answer 17

1

Answer 18

good so any number divided by itself is 1 right?

Answer 19

yes

Answer 20

so k/k=1
now let me ask you another question
what a number multiplied by 1?

Answer 21

maybe 1

Answer 22

no quite
any number multiplied by 1 we get that same number back

Answer 23

then

Answer 24

so according to this we should get \[\frac{R}{K}=\frac{L}{D^2}\]

Answer 25

this is really not gonna make sense to you if you have trouble with arithmetic

Answer 26

so can you repeat to me what we just did

Answer 27

do you really help me doing this math or you will just make fun of me. If I know that math I will not wait for 9 hours. I don't know this math so I am here for math help

Answer 28

no i'm really trying to help
sorry if you felt that way, i didn't mean anything like that

Answer 29

ok

Answer 30

if i'm making fun of you i wouldn't waste my time trying my hardest to explain to you

Answer 31

so did you understand what i did

Answer 32

let me tell you something homework is for learning not just to get a point and finish it
what your professor is concerned about is you tried your hardest and gave it your all
the things you stuck on you are supposed to bring them to your prof so he/she could explain to you.

Answer 33

when i was explaining to you
what I'm really concerned about is did you understand what we are doing
does it make sense to you, can you do more like this one if you get it?