Recent content by vitaminZ

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    Graduate Could we be living in a black hole?

    a black hole has a lot of gravitation, crushing everything that enters it. if we were in a black hole we would be crushed.
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    Undergrad Are photons much older than stars?

    Thanks. I was just reading genesis in the bible for literary reasons and it seems to state that a God created light first then the stars. However, it also suggests that the "formless" Earth was created before light... I just wondered about the science on this issue compared to the literal...
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    Undergrad Are photons much older than stars?

    When did the first stars form? When did the first photons form?
    • vitaminZ
    • Thread
    • Photons Stars
    • Replies: 15
    • Forum: Optics
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    Finding the Equilibrium Price and Quantity for a Simple Linear Equation?

    Homework Statement P = -50Qd + 80 P = 2Qs + 10 P = Price Qd = Quantity demanded Qs = Quantity supplied Find the equilibrium Price and Quantity. Homework Equations Qd = Qs (equilibrium) The Attempt at a Solution Qd = Qs Q Since they both equal to P -50Q + 80 = 2Q + 10...
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    How to solve simple Percentages problem?

    Homework Statement Q1. A shop's normal price for a camera is $175. If prices are temporarily reduced by 7.5%, what is the new price of the camera? Q2. In a sale, a shop reduces its prices by the amount of the VAT on each item. If VAT is 17.5%, what is the percentage price reduction? (Hint: The...