Recent content by Positralino

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    Why is the Reaction Rate Directly Proportional to Sulfuric Acid Concentration?

    The reaction I did for the lab is: H2SO4 + Mg --> MgSO4 + H2 In my graph, there displays the two variables - the concentration of sulfuric acid and the average rate of reaction in direct proportion. How do I explain the trend? I know I can explain this qualitatively using collision...
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    Critical density in our expanding universe

    I am only a beginner in physics and have been reading popular books. I read that the average mass-energy density of the universe determines its shape such as having uniform positive curvature, uniform negative curvature, or zero curvature if it equals the critical density. However, if spacetime...
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    Why do Majorana particles occur?

    Why do Majorana particles occur? For example, why is the antiparticle of photon itself?
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    Question about concepts of distance

    While reading "The Elegant Universe" by Brian Greene, I got stuck on the chapter about quantum geometry where it suggested that there are apparently 2 concepts of distance. I recall something about measuring distance with a probe traveling across the distance at a fixed and known speed and...
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