A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
You're filling a water balloon with a spherical shape. If the water is coming in at 4 cubic inches per second, how fast is the radius changing when the volume is 200 cubic inches? (answer: 0.0241 in/sec)
anonymous
 4 years ago
You're filling a water balloon with a spherical shape. If the water is coming in at 4 cubic inches per second, how fast is the radius changing when the volume is 200 cubic inches? (answer: 0.0241 in/sec)

This Question is Closed

baldymcgee6
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1351471895315:dw

baldymcgee6
 4 years ago
Best ResponseYou've already chosen the best response.1@sweett2639 do you follow?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[v= \frac{ 4 }{ 3 } \pi r ^{3}\]i understand that the volume of a sphere is and that\[\frac{ dv }{ dt } = 4 inches ^{3}/\sec\] but not much more than that

baldymcgee6
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1351472335325:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so you set 200 equal to v and moved the equasion around so that r is 3.628

baldymcgee6
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1351472455417:dw

baldymcgee6
 4 years ago
Best ResponseYou've already chosen the best response.1Right, we know that the volume is 200 in^3 at the moment of interest, therefore we can find what the radius of the sphere is at that moment

baldymcgee6
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1351472567598:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0everytime i try to calculate r, i get the wrong number

baldymcgee6
 4 years ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=4%2F%284*pi*%283.628%29%5E2%29 just make sure you type it into the calc correctly.
Ask your own question
Sign UpFind more explanations on OpenStudy
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.