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[" The unit mass having "r=8hat imath-4h...

[" The unit mass having "r=8hat imath-4hat jmath" and "],[v=8hat imath+4hat jmath" its angular momentum is "],[" a) "64" units in "-hat k" direction "],[" go) "64" units in "+hat k" direction "],[" c) "64" units in "+hat jmath" direction "],[" d) "64" units in "+hat imath" direction "]

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