Recent content by Aristata

Given two vectors, A and B: A = (x\widehat{x} + 2y\widehat{y} + 3z\widehat{z}) B = (3y\widehat{x} - 2x\widehat{y}) I need to calculate (B [dot] \nabla)A, as part of a problem. The answer should be: \widehat{x}(3y) + \widehat{y}( -4x) I get: (B [dot] \nabla)A = ((3y) \delta /...

Homework Statement A swimmer who can swim at a speed of 0.80m/s in still water heads directly across a river 86m wide. The swimmer lands at a position on the far bank 54 m downstream from the starting point. Determine: (C) The direction of departure that would have taken the swimmer...