Engineering - October 2007

I have an electric motor that uses a 30 amp draw to operate. I have a battery that puts out 3.0 watts and 3.5 volts. How many batteries do I need to operate this motor for a 6 hour period?

2007-10-01 07:32:00 · 3 answers · asked by Hydro2e 1

2007-10-01 05:00:06 · 9 answers · asked by Mercury 2010 7

2007-10-01 04:01:51 · 2 answers · asked by GC 1

I want to help a group of boy scouts build a trebuchet suitable for launching a tennis ball. I would prefer to use PVC due to weight and because it is an easy material to work with. However, I am also willing to consider good old pine 2x4s.

the unit must break down so that it is easy to transport and it must assemble fairly quickly and eaisly on sight. And, since we are dealing with spastic 10 year old boys, be a fairly robust and safe design.

Anybody have any free plans that would be suitable for this project?

2007-10-01 03:42:01 · 2 answers · asked by Anonymous

2007-10-01 01:41:11 · 2 answers · asked by Tabitha P 1

Hello! I'm taking a Intro. to Engineering Class. I have a project where we have to find a product with a performance clam that seems to be based off scientific evidence. Then evaluate the claim. I already have a few ideas. But if anyone has anymore, I would appreciate it.

Like I said, this is just a Intro. class, so the project isn't ment to be too technical.

2007-10-01 01:25:25 · 2 answers · asked by Anonymous