Is this a trick question?

[ksle82]

I just don't understand how i can solve this problem with the valves and pump shut off and the both tank sealed off. Anyone w/ a clue? :confused:

http://www.physicsforums.com/attachment.php?attachmentid=7433&stc=1&d=1154489416
tank.JPG

[mbrmbrg]

The problem just asks how to transfer the water, right?
Frankly "turn on the pump" is jumping up and down and waving at me...
Is there a part b? Like, complete part a, and find some value?

[PPonte]

The problem just asks how to transfer the water, right?
Frankly "turn on the pump" is jumping up and down and waving at me...
Is there a part b? Like, complete part a, and find some value?
:rolleyes: It is the wisest thing to do.

Or build a siphon (http://en.wikipedia.org/wiki/Siphon). :smile:

[HallsofIvy]

Why do either of those things? The problem is to transfer water from the upper tank to the lower. I would assume that the pump would be there to go the other way. Answer- open the valves!

[DaveC426913]

:rofl: :rofl:
I guess it's a perfectly valid question if two out of three PF members got it wrong!

1] If the pump were turned on, the valves would still be closed.
2] We don't know which way the pump pumps.

Answer - as HoI points out: open the valves!

[EDIT]
Hm. It does specifically say both tanks are sealed. Without backflow of air, it would take a very long time to transfer.
Turning the pump on would speed the process.

[ksle82]

Ummm...so just open the valves huh? Mother#%#@$@!!! Why do i tend to complicate things? %^$@$$#@#(&%

[civil_dude]

Open the valves and punch holes in both tank tops.