Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
math_proof
Group Title
find centroid of the region bounded by y=ln(x) the axis and x=e
 2 years ago
 2 years ago
math_proof Group Title
find centroid of the region bounded by y=ln(x) the axis and x=e
 2 years ago
 2 years ago

This Question is Closed

math_proof Group TitleBest ResponseYou've already chosen the best response.0
dw:1352954819183:dw
 2 years ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.0
First, you'll need the total area. What do you get?
 2 years ago

math_proof Group TitleBest ResponseYou've already chosen the best response.0
you have to do double integral to find mass right?
 2 years ago

math_proof Group TitleBest ResponseYou've already chosen the best response.0
so it will be (e1)p?
 2 years ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.0
Right, I assumed the very common uniform density. Sorry abuot that. "e1"? No. How did you get that?
 2 years ago

math_proof Group TitleBest ResponseYou've already chosen the best response.0
im confused about setting out the integrals limits
 2 years ago

math_proof Group TitleBest ResponseYou've already chosen the best response.0
is it e(loge1)
 2 years ago

math_proof Group TitleBest ResponseYou've already chosen the best response.0
\[\int\limits_{1}^{e}\int\limits_{0}^{\ln(x)}p dydx\]
 2 years ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.0
\[\int\ln(x)\;dx = x\ln(x)  x + C\] (e*ln(e)  e)  (1*ln(1)  1) = e*ln(e)  e  0 + 1 = e(1)  e + 1 = ee+1 = 1
 2 years ago

math_proof Group TitleBest ResponseYou've already chosen the best response.0
what is that? is that a mass?
 2 years ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.0
\[\int_{1}^{e}\int_{0}^{ln(x)}\rho\;dy\;dx = \rho\]
 2 years ago

math_proof Group TitleBest ResponseYou've already chosen the best response.0
for the center mass the integral will be the same?
 2 years ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.0
It's not a matter of guesing or whether we can predict it or how we feel about it. It's just how it works out on this one,
 2 years ago

math_proof Group TitleBest ResponseYou've already chosen the best response.0
\[\int\limits_{1}^{e}\int\limits_{0}^{\ln(x)}xpdydx\]
 2 years ago

math_proof Group TitleBest ResponseYou've already chosen the best response.0
just wanna know if this is the integration
 2 years ago

tkhunny Group TitleBest ResponseYou've already chosen the best response.0
Yes, that is one of them.
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.