anonymous
  • anonymous
a Little confused about the following mathematical derivation. v vector = r hat / r^2 = r vector / r^3 = (x * i hat + y * j hat)/(x^2 + y^2)^3/2
OCW Scholar - Physics II: Electricity and Magnetism
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[v \vec = r \hat / r^2 = r \vec / r^3 = (x \hat i + y \hat j)/(x^2 + y^2)^(3/2)\]
anonymous
  • anonymous
Maybe the reason i don't understand is because i have yet to take vector calc but i really need to understand this stuff is because i'm taking electromagnetism at University of Washington
dominusscholae
  • dominusscholae
R hat is by definition a unit vector, which is just a regular vector (in this case, just R arrow) divided by its length). factoring an r arrow over r will hopefully allow you to understand why this derivation holds.

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