what is the name for the length of time of a decay process ? how can this be used to calculate the amount of a radioactive element compared to its original amount?
Half-life is the period of time it takes for a substance undergoing decay to decrease by half. [ Half-lives are very often used to describe quantities undergoing exponential decay—for example radioactive decay—where the half-life is constant over the whole life of the decay. ]
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Weegy: Hello may i help you with a Question? User: i did Weegy: how can I help you? User: describe einsteins famous equation e=mc2 using two well known conservation laws? Weegy: E=mc2 is a version of Einstein's famous Relativity equation. Specifically, it means that Energy is equal to Mass times the speed of light squared. In essence, it states that there is an equivalence between mass and energy. [ [ This simple statement has many profound implications... such as no object with mass can ever go faster than the speed of light! ] ] User: what are two well known conservation laws that can describe einsteins famous equation e=mc2 (More)
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Weegy: Hello may i help you with a Question? User: what are two well known conservation laws that can describe einsteins famous equation e=mc2 Weegy: Laws of Thermodynamics The Laws of Thermodynamics are considered part of the bedrock of physics (and among physicists, about as immobile as bedrock). But there are two problems. The first is essentially a clarification. [ The Laws of Physics (including specifically the Laws of Thermodynamics) are, in reality, not laws of nature, but instead man-made theories or informed guesses of how man believes nature works and how she apparently limits herself. They are a theory, and no amount of propaganda or public relations will convert them magically into fundamental laws which cannot be breached. It takes, as a matter of fact, only one contrary example to shake the most basic bedrock of theory. And the current problem is that we’re all living in an earthquake zone! ] (More)
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Weegy: Hello may i help you with a Question? User: when in real life would you use einsteins famous equation e=mc2 Weegy: for a science experiment, or just for the heck of it. (More)
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Weegy: Hello may i help you with a Question? User: write a balanced nuclear equation for helium-6 decays by beta decay? (More)
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Flagged by jeifunk [1/15/2014 3:34:51 AM], Deleted by jeifunk [1/15/2014 3:35:11 AM]
They are known to consist of helium-4 nuclei (nuclei with two protons ... A nuclear equation is a symbolic representation of a nuclear reaction ... Ex. Plutonium 239 emits an alpha particle when it decays, write the balanced nuclear equation. ... Ex. Protactinium 234 undergoes beta decay. Write the balanced nuclear ...
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Flagged by jeifunk [1/15/2014 3:34:57 AM], Deleted by jeifunk [1/15/2014 3:35:09 AM]
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