Engineering - November 2007

I was to run my electric outboard at 45 amps every hour. How long will it last and why?

2007-11-12 04:52:22 · 3 answers · asked by Anonymous

this is an equasion for sensible heat, M is mass, delta t is the heat differences..... but C i cant make my head work.. thanks all

2007-11-12 04:41:24 · 6 answers · asked by Martin Q 2

also how many amps does your standerd (40 pounds thrust)electric outboard run at 12 volt

2007-11-12 04:18:52 · 2 answers · asked by Anonymous

2007-11-12 04:11:23 · 4 answers · asked by a1cbch 1

If we went to an alternative fuel of specifically a fuel cell that uses water, how would the govenment tax it to pay for roads and what not? Where I live, the cost of off road diesel $1.00 less per gallon because it isn't taxed. How would the government make that money up if we could just go to any water source and fill up? How will the make up the hundreds of millions of dollars they'd lose? I don't think a dollar per gallon tax on water would work because its also a neccessity to live. Do you think not being able to get around the tax issues has limited the governments involvement in finding alternative fuels? I know theres been government fuel cell projects going on since the 80s, but its hard to believe nothing practical has come out of it yet.

2007-11-12 04:02:11 · 5 answers · asked by dsaf f 2

I have a question from my homework; it's said "The wall outlets in your home are 120V. In europ, the wall outlets typically supply 220V. Find out how you can use your hair dryer in Europe."
I looked at all the website that I could ..but I couldn't find the answer ..Can anyone help me? I told my teacher ..if I were on that problem I would buy another hair dryer in Europe instead using mine .lolz

2007-11-12 03:41:08 · 5 answers · asked by *KriiStY* - 1

Can somebody explain how to do this?

http://images31.fotki.com/v1041/photos/7/70549/1058975/lapproximation-vi.jpg


I'd appreciate any help. Thanks.

2007-11-12 03:14:55 · 1 answers · asked by Anonymous

2007-11-12 03:13:00 · 1 answers · asked by sniper 1

2007-11-12 02:40:30 · 1 answers · asked by Anonymous

2007-11-12 01:55:11 · 3 answers · asked by Anonymous

2007-11-12 01:52:40 · 4 answers · asked by Anonymous

Wikipedia states the following:

"The compression stroke is the second of four stages in an otto cycle or diesel cycle internal combustion engine.

In this stage, the mixture of air and petroleum is "compressed" to the top of the cylinder by the piston until it is either ignited by a spark plug in an Otto engine"

What I really want to know is, how does the "compression" occurs? I mean, it can't just "compress", there must be some sort of mechanism or source of energy to instigate the "compression". How does it occur?

2007-11-11 23:09:42 · 4 answers · asked by Anonymous

Dogs are always peeing and craping in my yard... Would it be mean if I biuld a devise called a dog pee post? The devise would consist of a metal conductor sticking up from the ground with a large car battery or several car batterys hooked together to a voltage amplifier (200,000 volts)....when a dog tries to take a piss on it it will get a non life threatining 200,00 volt jolt.....mabe i could set up a sprinkler system that would pop up and spray the dog with water when activated by the pee post...the wet dog would make a better conducter for electricity than a dry dog....this would be a non life threatining devise...it would just remind to dog not to pee there anymor.......

2007-11-11 17:46:46 · 6 answers · asked by space chimp 3

2007-11-11 16:11:31 · 1 answers · asked by arshi57 1

what are the horizontal and vertical components of a 10-unit vector that is oriented 53 degrees above the horizontal?

2007-11-11 15:37:01 · 2 answers · asked by babyhonbri 2

A right triangles with sides of 3, 4, and 5 units has angles that are 37 degrees, 53 degrees, and 90 degrees, respectively. Which of its sides is the hypotenuse? Which side is opposite the 37 degrees andle? which side is opposite the 53 degrees angle?

2007-11-11 15:33:52 · 2 answers · asked by babyhonbri 2

undergraduate study

2007-11-11 15:27:30 · 10 answers · asked by Geico 2

the graphs plotted for displacement, velocity and acceleration vs frequency of vibration have some peaks n valleys what r these peaks n valleys called???

2007-11-11 15:09:20 · 1 answers · asked by tornado_on_its_way 1

What are the differences in the Chemical Engineering and Mechanical Engineering majors?
Specifically:
What are the differences in coursework?
Which field is easier to get a job in with a B.S.? M.S.?
Is one considered easier than another?
Anything else you find important to talk about?

2007-11-11 14:41:37 · 3 answers · asked by Anonymous

2007-11-11 14:19:56 · 6 answers · asked by ? 2

i need help!!!! {=[

2007-11-11 14:08:53 · 5 answers · asked by Anonymous

2007-11-11 13:47:47 · 2 answers · asked by rosievega2781@sbcglobal.net 1

when cutting rafters what degree of cut is required for a 10 foot wide building with 4 and 12 slope

2007-11-11 13:34:08 · 1 answers · asked by Anonymous

Is there a way to determine whether a material can be considered brittle or ductile based on its yield strength or ultimate strength in compression & tension?

2007-11-11 13:31:20 · 8 answers · asked by Joseph H 2

b) 10ft.
c) 12ft.
d) 15ft.
a) (i had wrong) Thx for everyones answers !

2007-11-11 13:29:12 · 1 answers · asked by lori gurl 1

I'm making a model heart for my science class (Grade 8) and I have some clear acrylic/plastic tubing stuff (1/4") and I can't figure out how to get the water to flow through the tubing. I have a hand-pump so the air will force the water through it. I have some like 3 way "splitters" things (vacuum tees). But I'm still not sure how to get the water through it, I tried it like this (The thing in top right is a 3 way vacuum tee thing)
pump is here
_____-|| (periods are nothing
|............|
|_____|

Not a very good diagram but I dont have any other ways of showing it. I thought I could use a bulb pump or something to have the red coloured water to go through to tubing so it looks like blood. By the way all this is supposed to look like arteries or veins with blood going through the model heart.

2007-11-11 13:24:42 · 2 answers · asked by Anonymous

What did go wrong with the russian sub which was never rescued?

2007-11-11 13:13:56 · 2 answers · asked by miga 2

how big would you want it to be? and how much would you pay? and any other comments would be helpful thanks!

2007-11-11 12:25:14 · 4 answers · asked by Jrodd 2

I am a truck driver and my cusin passed away - he was a plumber - and I inherited his soldering iron and also some solder and flux paste. So now I can do electonics. What is the best way to contact an aliun civilisashun, and where can I buy the stuff? I think it is called SETI.

2007-11-11 12:23:30 · 3 answers · asked by Jan O. 1

2007-11-11 12:14:50 · 3 answers · asked by rachaeledawson 2