# Is this a trick question?

1. Aug 1, 2006

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2. Aug 2, 2006

### 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?

3. Aug 2, 2006

### PPonte

It is the wisest thing to do.

Or build a http://en.wikipedia.org/wiki/Siphon" [Broken].

Last edited by a moderator: May 2, 2017
4. Aug 2, 2006

### HallsofIvy

Staff Emeritus
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!

5. Aug 2, 2006

### 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.

Last edited: Aug 2, 2006
6. Aug 2, 2006

### ksle82

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

7. Aug 2, 2006

### civil_dude

Open the valves and punch holes in both tank tops.