Acube of side 5cm is placed in a fluid. for the following velocity values, calculate the average divergence of the flow. is there a source or sink within this box? the velocities are given in cm/s. the cube is oriented so that the +z axis exits the front face, the +x axis exits the right face and the +y axis exits the top face. front. vr=30i+60j-30k right v 20i-20j+20 left v-100i+200j+300k ^ ^ top-5+ 50+ 10k bottom vbe0 back vb. =250k also draw a diagram showing these velocities.