Recent content by cosmoshadow

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    How Does Energy Density Change with Scale Factor in Cosmology?

    bump?
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    How Does Energy Density Change with Scale Factor in Cosmology?

    can someone take a look at this? I'm pretty sure its a simple operation that I'm failing to realize.
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    How Does Energy Density Change with Scale Factor in Cosmology?

    Homework Statement The fluid equation in cosmology is given as: \dot{\epsilon} + 3*(\dot{a}/a)*(\epsilon+P) = 0 Where \epsilon is the energy density and a(t) is a scale factor. Using the equation of state, P = w*\epsilon, show how \epsilon change with a(t). Homework Equations...