What alternate energy source will you need if conditions make the first one not usable. Explanin why source.?
470132
Solar energy ( using solar panels or something ) is the ultimate alternate energy source, because the energy in living things comes from the sun.  The energy in petroleum, which comes from dead plants, comes from the sun.  And the energy from hydroelectric dams comes from the sun, because the sun evaporates the water so it can rain down on the mountains and fill up the reservoir behind the dam.  Why not just go directly to the source--the sun.\n\nAs for simulating day and night, you must do this!  The human body schedules itself to sleep about every 24 or 25 hours.  Going against this schedule or against the schedule of light and dark periods can cause difficulty sleeping, difficulty staying awake, and possibly psychological problems.\n\nI don't really know what kind of colony you are referring to, so I can't really answer the other questions.  Is it a computer simulation, like Sim City, or a science-fiction colony on the planet Mars, or just a wilderness survival plan?
485922
the minimum amount of energy required to start a reaction
320753
Anything the energy can be converted to use for.\n\nUsually it is light and heat though.
519547
Most likely Energy in Joules. We need a context though.
1140369
First Law of Thermodynamics: Energy can be changed from one form to another, but it cannot be created or destroyed. The total amount of energy and matter in the Universe remains constant, merely changing from one form to another. The First Law of Thermodynamics (Conservation) states that energy is always conserved, it cannot be created or destroyed. In essence, energy can be converted from one form into another. Click here for another page (developed by Dr. John Pratte, Clayton State Univ., GA) covering thermodynamics.\n\nok now to answer your question:\nWork=PV=nRT\nWork=(2moles)(8.32)(106-21)\nWork=1414.4J
1171490
So far, there's not enough demand to warrent the extra cost of developing alternative energy sources.  In order to stop using oil (for power) we will need to find cheaper ways of getting alternative energy or become much more motivated to do so.
1187482
Kilowatt\nCost depends on method of generation and location
40675
The source of energy is food. Food is digested, giving you energy.
184337
You should re-ask.  Do you mean strength or heat or both?  We also produce electricity and build chemicals that store energy.  You need to define output better.
816304
the second law of thermodynamics. it states that a body cannot extract energy from a lower energy body to a higher energy body, in a simplistic sense. the body cannot extract energy from a depleted energy reserve to do work, the physical effects of which are usually of higher energy levels.
930423
All energy eventually ends up as heat.  It's a consequence of the second law of thermodynamics
653017
I would start with the sun. It is the source of all the energy we get. It made the plant grow that the dinosaurs ate that we get fossil fuel from. It causes the weather that we can get wind energy or tidal energy, or we can get solar power directly. Yup.. start with the sun and trace every kind of energy you can think of back to it.
70676
Natural gas is a very good source for energy, but it is non-renewable with our current technology. \n\nHydro-electric is a viable energy source for electricty. It will always be available unless the water cycle ends.\n\nCoal is a good source for heat and power, but it does have some polluting characteristics in its natural state.\n\nNuclear is good for electricity production, steam generation and heat (from steam), it does leave residual waste, that is more concentrated radioactivity than what occurs naturally.\n\nFuel cells require power to produce but they work very well. They use readily available materials and can be scaled to the power output that is needed.\n\nGeothermal is good for heating houses and on a large scale in some areas for producing electricity. It is also a renewable power source.\n\nWind and solar are two more options that are becoming readily available for the end user. They are generally coupled with a battery system for calm periods of weather and night time.
278301
Any non-traditional fuel. eg.\nbiofuel: such as grass for burning to get electricity.\nH2 (the gas)\nand many more
772410
electrical energy-------> heat + light\ndoes that help?
277185
Best the argument is with fossil fuels, like oil or natural gas.  These fuels are not renewable and they will eventually run out if we do not find alternative, renewable forms of fuel like ethanol or hydrogen.  Hope this helps you get started
818579
they are nonrenewable resources.\nonce they been used once (burned) they finished with and cannot create anymore energy.\nThe world has a limited suply of these nonrenewable energy sources left.\n\nrenewable sources woud include solar (sun) wind and water power as these will never run out