Recent content by cremedelacreme

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    How Can I Remember the Electromagnetic Spectrum Order?

    Does anyone have a good mnemonic to remember Electromagnetic Spectrum either according to increasing wavelength or frequency? Thanks!
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    Solving Tension Ratio of Steel Wires with Hooke's Law

    F/A divided by Difference in L/L Since Stress/Strain Thus Fl/A(Difference in L) L is doubled Area is halved hence in Q it should be 4 while in P it is 1 But the answer says that it is 4:1
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    Current Question: How Many Electrons in Copper Wire/sec?

    Err Ampere = Charge / Time So Charge = Ampere / Time ooh we find the charge and since one electron has a charge of 1.6 x 10^-19 thus, we divide the charge by the charge of one electron... is it correct?
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    Solving Tension Ratio of Steel Wires with Hooke's Law

    Yeah, I got it but it's not the right answer...
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    Current Question: How Many Electrons in Copper Wire/sec?

    Err V= IR? But I don't know how to relate with Area...
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    Current Question: How Many Electrons in Copper Wire/sec?

    A copper wire of cross sectional area 2 mm^2 carries a current of 10 A. How many electrons pass through a given cross sectional of the wire in one second?
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    Solving Tension Ratio of Steel Wires with Hooke's Law

    Two steel wires P and Q have lengths l and 2l respectively and cross sectional areas A and A/2 respectively. Both wires obey Hooke's Law. What is the ratio (tension in P/tension in Q) when both wires are stretched to the same extension?
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    Car Mass & Speed: Explaining with Newton's 1st Law

    If a car of mass 50 kg and another one of mass 100 kg rolls down a slide, which one will move faster? Why? Can it be explained using Newton's 1st Law: Law of Inertia? or the Kinetic Energy?
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