Question

Can anyone help me please?
What is the answer?

t=-1/1.21x10^-4 ln[ 7.272x10^-13/1.18x10^-12]

Answer 1

what is the denominator?

Answer 2

1.18x10^-12

Answer 3

Wolfram says 4000.56

Answer 4

is it -1/ { 1.21x10^-4 ln[ 7.272x10^-13/1.18x10^-12] }
or (-1/1.21x10^-4 ) * ln[ 7.272x10^-13/1.18x10^-12] ?

Answer 5

the first one...

Answer 6

17072.93155

Answer 7

hmmm? to many solutions

Answer 8

try 4.00056 x 10^3

Answer 9

lol because the question is not clear

Answer 10

yes callisto sorry about that

Answer 11

i have the full question though not sure if you guys are gonna be here long enough

Answer 12

:)

Answer 13

can you scan it here?

Answer 14

let me see

Answer 15

But it's more about exponential decay

Answer 16

here

Answer 17

So it's like a mixture of math/chemistry, but since chemistry forum is kind of lonely i'm not really into posting it over there

Answer 18

So far thanks for all the great help!!!!

Answer 19

5093.15 actually i think it's something about physics lol