exp growth decay (1 Viewer)

[ipod21]

question 5c)

s=0 I= 6000

so for I=6000,
s=-6 or s=6? (it said 6m below surface)....

what rate did u guys get? i got -298.6 ...

 

[emo-kid-91]

positive 6. the distance 's' is given as being below the surface anyway.

 

[dolbinau]

it is never negative only k is

 

[laurennn91]

i dont know what you're asking..

first of all it was 's' not 't', and s was metres below surface level. so it was 6, not -6

 

[sdx91]

question 5c)

s=0 I= 6000

so for I=6000,
s=-6 or s=6? (it said 6m below surface)....

what rate did u guys get? i got -298.6 ...

i got that similar answer but your supposed to say +298.6 decreasing

 

[henry08]

what rate did u guys get? i got -298.6 ...

I got the same as you, so did some of my friends.

 

[hjp.]

Lol i had no idea how to do that question.

 

[Jaspal]

yeah i got it

My answer was

decreasing at a rate of 299 I/m

 

[ipod21]

so if i left my answer as -298

instead of writing decreasing at 298... i am wrong arent i?

 

[zxcvbee]

question 5c)

s=0 I= 6000

so for I=6000,
s=-6 or s=6? (it said 6m below surface)....

what rate did u guys get? i got -298.6 ...

it was post 6, cos the question said s was defined as the meters below, so yer
I got the same answer as you and then wrote ie decresing as 298.6 lux./m

 

[henry08]

so if i left my answer as -298

instead of writing decreasing at 298... i am wrong arent i?

No, as negative means decreasing.