Starting from rest, a 93-kg firefighter slides down a fire pole. The average frictional force exerted on him by the pole has a magnitude of 840 N, and his speed at the bottom of the pole is 3.6 m/s. How far did he slide down the pole? ho

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A: from the figure,the vector  in cartesian form is and the vector  in cartesian form is

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Q: Problem 9: Rutherford Scattering A gold foil (5.9×1022 atoms/cm³) of "hair" thickness 80 µm is used…

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Q: Use the identity above to prove that Ã×(B×C) + B×(C×Ã)=Č×(B× Â).

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