Archive for the 'Physics' Category

does the energy from a power plant originally come from the sun?


coal power
kcguy13@prodigy.net asked:


At the T. B. Simon power plant, burning coal produces steam in a boiler, the steam flows through turbines, the rotating turbines drive electric generators, the generators deliver alternating current to the transformer station, and the transformers provide emf to the campus electric grid. Thus electric power is available throughout the MSU campus.

Therefore the energy that powers electrical devices at MSU came originally from the sun. Explain this statement in a short essay, and include the answer to these questions: How did the energy come from the sun? When did the energy come from the sun?


state 3 advantages of a hydro-electric power station over a coal-fired power station?


coal power
minche asked:


anyone who knows a site about pressure and heat energy please tell me !!!

Does coal energy production really produce more radioactivity than a nuclear power plant?


coal power
Joe G asked:


i find it hard to believe, but i keep seeing it coming up in sources such as this:

http://www.sciam.com/article.cfm?id=coal-ash-is-more-radioactive-than-nuclear-waste

if this is really true, why don’t we hear about huge talks about where to store our COAL waste? similar to the huge debate about storing nuclear waste.

If you find anything to the contrary, please post a source or link

Very confused,
Joe


which countries only use nuclear or hydro or coal power?


coal power
to be or not to be asked:


the national grid

how much power does coal produce?


coal power
CESCAA惄 asked:


Help.

what is the rate of power discarded ? given efficiency and power output?


coal power
booke asked:


At a coal-burning power plant a steam turbine is operated with a power output of 607 MW. The thermal efficiency of the power plant is 28.7%. At what rate is heat discarded to the environment by this power plant?