PeroK's latest activity
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PeroK replied to the thread High School Potato paradox.It's only paradoxical if you insist on manipulating numbers without thining about what the numbers mean. There was a viral problem in... -
PeroK replied to the thread High School Photoelectric and summation of photons energy.Intensity is the amount of power per unit area. Frequency in classical EM relates to the speed of oscillation of the electric and... -
PeroK replied to the thread High School Photoelectric and summation of photons energy.There is no such thing as a photon in classical EM. It's not just that the frequency of the light is the key factor. The dislocated... -
PeroK replied to the thread High School Is it safe to fly in a spinning hollow asteroid?.It could be called an asteroid belt. -
PeroK replied to the thread High School Is it safe to fly in a spinning hollow asteroid?.Shouldn't seatbelts be mandatory when travelling by asteroid? -
PeroK replied to the thread Undergrad Solving ##a^b## and ##b^a## via the Lambert Function.Here's an analysis. We start with a more general equation:$$a^x + x = b$$$$(b - x)a^{-x} = 1$$$$(b-x)a^{b-x} = a^b$$We want to use the... -
PeroK reacted to Antoha1's post in the thread Angle between two alpha particle tracks due to proton bombardment of a nuclei with
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Here is my recent solve checking if I understand it now: Proton's total energy now is kinetic plus rest so E+mc^2, then conservation of... -
PeroK replied to the thread Undergrad Comparing ##a^b## and ##b^a##.Moved to other thread. -
PeroK replied to the thread Undergrad Comparing ##a^b## and ##b^a##.Moved to other thread. -
PeroK replied to the thread Angle between two alpha particle tracks due to proton bombardment of a nuclei.Unless you are using an old textbook, the rest mass ##m## is the mass in modern physics. Relativistic mass is no longer used. In any... -
PeroK reacted to kuruman's post in the thread Angle between two alpha particle tracks due to proton bombardment of a nuclei with
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IMHO 2. -
PeroK replied to the thread Angle between two alpha particle tracks due to proton bombardment of a nuclei.First, for relativistic collisions it is far better to work using mass, energy and momentum. The key equations involve these... -
PeroK reacted to kuruman's post in the thread Angle between two alpha particle tracks due to proton bombardment of a nuclei with
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I don't think it is correct to write the momentum of the proton as ##mv## because that is not the relativistic expression. You are given...