Identify the parts of a voltaic and electrolytic cells and explain how each part operates?? Does anybody know please thoroughly explain this to me thank you.
All of the following power plants are considered thermal power plants because they heat the steam that works the generators, except
a.nuclear power plants
b.coal burning power plants
c.fossil fuel power plants
d.hydroelectric power plants
1) What types of batteries are being used?
2) What are their anticipated useful lives? (Each type)
3) How is each type recycled or how is disposal accomplished after their useful life has expired?
please may you help me with this question
Explain, using the kinetic theory, the changes which take place in the steam generator vessel as the water is heated rom a liquid to a gas, increased in ressure by increasing temperature and then cools baqck to a liquid. Be sure to gie a ful explanation of the molecular behaviour and the molecular forces involved at each stage.
Link this to the nuclear power station
please may you provide as mudch information as possible please
10 points
thank you
NASA has developed Deep-Space 1 (DS-1), a spacecraft that is scheduled to rendezvous with the asteroid named 1992 KD (which orbits the sun millions of miles from the earth). The propulsion system of DS-1 works by ejecting high-speed argon ions out the rear of the engine. The engine slowly increases the velocity of DS-1 by about 19.0 m/s per day.
(a) How much time (in days) will it take to increase the velocity of DS-1 by 11000 m/s?
_____________days
(b) What is the acceleration of DS-1 (in m/s2)?
_____________m/s^2
I’ve been sick and out of school for 4 days in a row and tomorrow I’m going to have to do an enormous boat-load of work that all but 1 of my teachers has neglected to surrender. Anyway, for one of the assignments that my Government teacher gave me, I’m supposed to paste an analysis of 8 WWI propaganda posters (each concerning a specific topic). So far, I’ve completed all but 2- one of a topic of my choice, and one with the topic,”Conserving electricity.” Unfortunately, the site provided on the worksheet
http://www.rare-posters.com/361.html
1. The law of conservation of energy states _____ is never created or destroyed.
mass
energy
heat
chemicals
2. The matter contained in living organisms, also called _____, contains chemical energy.
biomass
fossil fuels
kinetic energy
energy transformation
3. A _____ transforms kinetic energy into electrical energy.
generator
turbine
power plant
steam line
2. The matter contained in living organisms, also called _____, contains chemical energy. (1 point)
biomass
fossil fuels
kinetic energy
energy transformation
3. A _____ transforms kinetic energy into electrical energy.
(1 point)
generator
turbine
power plant
steam line
A heat engine consists of an oil-fired steam turbine driving an electric power generator with a power output of 120megawatts. The thermal efficiency of the heat engine is 40 percent.
(a.) Determine the time rate at which heat is discarded by the engine.
(b.) If the heat of combustion of oil is 4.4 x 10^7 joules per kilogram, determine the rate in kilograms per second at which the oil is burned.
(c.) Determine the time rate at which heat is discarded by the engine.
(d.) If the discarded heat is continually and completely absorbed by the water in a full tank measuring 200 meters by 50 meters by 10 meters, determine the change in the temperature of the water in 1 hour. (Density of water is 1.0 x 10^3 (kg/m^3); specific heat of water is 4.2 x 10^3 (J/kg x degrees C))
While geothermal energy use is efficient, reliable, and environmentally friendly, it currently meets less than 1% of U.S. power needs.
Why is that?
NASA has developed Deep-Space 1 (DS-1), a spacecraft that is scheduled to rendezvous with the asteroid named 1992 KD (which orbits the sun millions of miles from the earth). The propulsion system of DS-1 works by ejecting high-speed argon ions out the rear of the engine. The engine slowly increases the velocity of DS-1 by about 19.0 m/s per day.
(a) How much time (in days) will it take to increase the velocity of DS-1 by 13600 m/s?
____days
(b) What is the acceleration of DS-1 (in m/s2)?
_____m/s2
( I know part A but i cant find the answer for part B )
I have always desired for people to like me but it truly feels as if they are just using me for a certain reason. What should I do? I want to be well noticed and I would like to know how I can get people to like me as well as get people that are pesterring me for a certain reason to stop. What should I do in order to stop this? Some people really take a toll on me but I do not know what to do. I guess you can say I just want them to respect me and stop playing around with me in a certain way because it really bothers and makes me feel as if they are draining my energy away. It really is a tremendous bother and I just wish to know how I can become more well noticed in a good way. I have always felt that there was a conspiracy in society but I think it is just me blaming people that disrespect me for my hypocriteness when in reality it is just the way I can not come back at them in response. What should I do with my problem? How can I get people to consider me cool? I am tired of people trying to screw me over and I truly used to think that society was just as shallow as can be. How can I get people to stop trying to screw me over in response to better my lifestyle? To be honest, Yahoo! ANSWERS has helped in a myriad of ways and I would just like to know if it can come around as it did before this time. I know it may not but it is the overwhelming aura of people’s positive intentions which will make me feel great. I truly hope that there is someone out there that can help me with my problem and I wish everyone a wonderful summer.
Peace.
Peace.
All I need to know is if geothermal energy is a nonrenewable resource or a renewable resource. I also need some illustrations on how the energy resource is used (just give me a link to that). I also need to know its advantages of its use and its disadvantages. Thanks for your answer. You have all my gratitude for it.
In March 1989, the oil tanker Exxon Valdez struck a reef after leaving the port of Valdez Alaska. A very large oil spill resulted. Find out what long-range and short-range decisions led to the disaster. Describe any chemical processes that were used in the cleanup.
In March 1989, the oil tanker Exxon Valdez struck a reef after leaving the port of Valdez Alaska. A very large oil spill resulted. Find out what long-range and short-range decisions led to the disaster. Describe any chemical processes that were used in the cleanup.
What do we think of our government and how they are handling our energy crisis? This very real energy crisis has been off and on since the 1960’s and ever since then our government has done little or nothing to really fix it. Somehow this country (Bible humpers mostly I believe) voted Bush’s into office repeatedly who retain massive oil rights which would only detour someone in power from truly seeking a new energy source. Republicans (and democrats…. But mostly republicans) seem to care little regarding the average citizen whose pockets are getting squeezed in this recession. We have so many possibilities such as solar, wind, waste energy, bio-fuels ETC; which by themselves would do little but together could be a cure for the planets woes. Okay I’m rambling….. in the end desperation is motivation and the average citizen is fat and lazy and would easily grant power to someone who says they can fix their problems. Could we see our current form of government eventually using our energy crisis to gain complete control in a pseudo communist fashion, creating an American monarch of the wealthiest most political figures? If 2% of the world’s population control 90% of the world’s wealth with the majority being in America could we be eventually in our lifetime be looking at becoming the next Russia controlled by our wealthy in a widespread panic and poverty created purposely for the sole intent on full control? Basically is our country headed for communism or socialism under full government control?
A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 995 and 1450 N, respectively. The acceleration of the cable is 0.620 m/s2, upward.
(a) What is the tension in the cable below the worker?
N
(b) What is the tension in the cable above the worker?
N
The space probe Deep Space I was launched on October 24, 1998. Its mass was 474 kg. The goal of the mission was to test a new kind of engine called an ion propulsion drive. This engine generated only a weak thrust, but it could do so over long periods of time with the consumption of only small amounts of fuel. The mission was spetacularly successful. At a thrust of 53 mN how many days were required for the probe to attain a velocity of 895 m/s (2002 mi/h), assuming that the probe started from rest and that the mass remained nearly constant?
how do you get the appliances connected to the solar power apparatus? does it have some kind of special switch or plug or anything….? i really don’t have any idea. or do you have to buy an appliance specially made for solar power? if so can anybody recommend a brand or store that sells these?
Everyday I listen to liberal Democrats allege that Bush started the war for oil but they never elaborate. Since oil prices exported out of the Middle East just reached a record high of $100 per barrel a couple hours ago, how does the US benefit; moreover how does Bush benefit? After all, it is the same liberals that don’t want the us to tap into our own oil reserves in pristine Alaska to help offset the dependancy on Middle Eastern Oil while the Arabs continue to monopolize on THEIR oil (not ours) charging what ever they want. I’ll bite my lower lip again while you libs tap dance…