PV Gap

Margie Said:

science help does anyone know it?

We Answered:

I don't know what the other guy was thinking except maybe to screw you over.

(1) Generators make electricity.
(2) Thermal plants heat water
(3) Nuclear fission splits atoms
(4) Electrical to mechanical is a motor
(5) Uranium-235, enriched from U-238
(6) All of the above; wind, solar, water, geothermal, etc.
(7) Magma -- actually hot hydrothermal fluids, but close enough
(8) Landfills emit methane which is sometimes captured for use as energy
(9) Wave power comes from the ocean
(10) North Dakota. South is #4, California #17, Florida doesn't even make the Top 20

Agnes Said:

Potential water solution for Vegas?

We Answered:

The idea is sound, but of course there is a problem with moving the water. Unless you plan on putting pumps at various intervals, which would be costly, the pipes would have to be placed in a downgrade pattern. Then there's the cost of laying the pipes and the purchase of the pipes themselves. That would also cost a lot. It would have to be put underground, which mean digging up a lot of terrain and diverting the left over terrain to other places, which means more costs. And of course, there's still the matter of regular maintanence of the pipes. Then you have the whole "who owns what, who's responsible for what" issues. Is it the city of LA, is it city of vegas, is it a county thing, or a state thing, or is it a private company? Lot of paperwork and legislation involved there.

It's definitely do able in my opinion and I think we would benefit from it. I also think it would be a very smart move, especially given the problems we're having with lake mead right now. But there are a lot of what-if's involved in a scenario like that, that would need to be hashed out long before it ever could be done and become a reality. One day it might happen, and probably will happen, but for now, I think the costs are more than city officials want to spend, and the problems of building such a huge system is too many for them to want to deal with. It would be a major headache for a lot of people during the set up process. I think one day, we'll have no choice but to go that route, and as great of an idea as it is, I think it's still too early yet for us.

Cool idea though.

Harry Said:

SCIENCE QUESTIONS>>>?

We Answered:

Here goes:
1 electrical energy
2 water
3 splits
4 motor, technically it's supposed to be "an electric motor" since there are "gasoline motors"
5 uranium but I don't know which, I guess it's OK for you to search for this 1 out of 1 answer:-)
6 all of the above
7 magma
9 Wave

Lawrence Said:

If I have only this load value as 20MW, how to convert it to kV?

We Answered:

Watts is a power unit, not a voltage. To relate the two in an electric circuit, you need to know the current (in amps) that will pass through the circuit. The formula is:

P = I*V

You can also express this as V = P/I

(These are simplifications for circuits that don't account for time lags, frequency changes, inductive circuits, etc, but they are good first-order equations.)

So if you are producing 20 MW of power, and you want to make the output at 1000 volts:

1000 = 20,000,000 / I

so I is 20,000 amps - probably way too high for a transmission line. If instead, you want to limit your current to 1,000 amps, you would use:

V = 20,000,000 / 1,000 = 20,000 volts.

Raul Said:

PLEASE HELP SCIENCE 10 POINTS fro best answer?

We Answered:

Seriously, you should try to learn and study because if you need others to answer such simple questions there's no way you're going to pass the exam. You can do it on your own, and that is the only way you'll do well on the exam or in anything else for that matter.