This one has everyone stumped. Help ?

  • Thread starter mellbee
  • Start date
  • #1
3
0
This one has everyone stumped. Help ??!!

Even went out to the college for help with this one. A round tak is 100 feet in diameter. It is to be filled with gasoline from the BOTTOM. The gasoline weighs 40 lbs per cubic foot. How much ENERGY in ergs will be required to fill the tank ? :yuck:
 

Answers and Replies

  • #2
Doc Al
Mentor
45,031
1,330
Sounds like Homework to me... Please show your attempted solution in order to get help.

Hint: Consider the change in potential energy
 
  • #3
3
0
Not homework, but bonus question on a test that has been driving me up the wall. Will get the answer next week, but it's killing me. Thanks.
 
  • #4
Doc Al
Mentor
45,031
1,330
Well... what have you done so far?
 
  • #5
3
0
Well, I tried to figure out how to set up the intergal, but that was a far as I got. If I could figure out how to set up my integral, I would be able to evaluate easily. I think my problem is that I'm a calc 2 student who hasn't had any physics, and that is why this is stumping me.
 
  • #6
Gokul43201
Staff Emeritus
Science Advisor
Gold Member
7,051
18
If you'd had some physics, you'd see that you can solve this without having to explicitly integrate. See the hint in post #2.
 

Related Threads on This one has everyone stumped. Help ?

  • Last Post
Replies
4
Views
844
Replies
20
Views
2K
  • Last Post
Replies
21
Views
2K
Replies
1
Views
901
Replies
3
Views
4K
Replies
34
Views
2K
  • Last Post
Replies
7
Views
2K
  • Last Post
Replies
2
Views
942
Replies
19
Views
9K
Top