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help with an equation

subzero12 · 2009-04-21 21:10:27

the equation is its for getting the height of fluid after 40 seconds h(40) = (.00001)(208953000)/(1000)(9.81)-((.00001)(208953000)/(1000)(9.81)-.092)e^-(1000)(9.81)/(208953000)(.02043)(40) apparently the answer when worked comes to .103 m but i doesnt seen to work for me! can anyone get it thanks for any help in advance

21-04-2009 09:10PM

#1

subzero12

Closed Accounts Posts: 96 ✭✭

Join Date: August 2007

Posts: 71

the equation is its for getting the height of fluid after 40 seconds

h(40) = (.00001)(208953000)/(1000)(9.81)-((.00001)(208953000)/(1000)(9.81)-.092)e^-(1000)(9.81)/(208953000)(.02043)(40)

apparently the answer when worked comes to .103 m but i doesnt seen to work for me! can anyone get it
thanks for any help in advance

0

Comments

#2 21-04-2009 10:19PM

Dufresne

Registered Users, Registered Users 2 Posts: 201 ✭✭

Join Date: July 2007

Posts: 183

I presume theres an extra set of brackets after the e to the power of bit - ie its not just e^-1000.

Anyway I punched it into derive for you and got 0.09278289675

0
#3 21-04-2009 10:39PM

mathew

Registered Users, Registered Users 2 Posts: 1,488 ✭✭✭

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Posts: 1446

sure you produced the equation properly?
I'm assuming that its a dynamics equation..
Any chance you could write it out and scan it, or do it up in word or something.. Its kinda hard to make it out..

0