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2008-08-20 Physics - relativistic mass of light: Watts per second is the wrong unit. Include units in your equations and you won't make mistakes nearly as much, I find. I'm going to use 300,000,000 m/s as the speed of light, it's close enough. In...
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2008-08-20 Physics - gravitation: Most would say it would increase, but that's slightly inaccurate. If the Earth's orbit increases in speed gradually, it will want to go in a straighter and straighter line, meaning a bigger circle around...
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2008-08-20 Physics - Quick high school physics question: Your difficulty here is caused by the fact that you are asking the wrong question! The real question is "What type of problem is this and what approach will be most successful in solving it?". Believe...
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2008-08-20 Physics - maximum force at belt when car crash: Hello Mohd Rajaei Mahamadi, Sorry, but I do not know any websites dealing with your question comprehensively. A brief treatment and some further links can be found at: http://en.wikipedia.org/wiki/Impact_force...
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2008-08-20 Physics - Thermophysics: Hello Chen, the ideal gas equation pV = nRT can be derived empirically (from observations that led to precursors of this law) or theoretically from statistical mechanics. See http://en.wikipedia...
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