N=-d(n2-n1)/(x2-x1) d is diffastion. what are the dimensions of d.

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

While carrying a heavy box up the stairs,you set the box on a step and rest. then you pick up the box and carry it to the top of the stairs. describe these actions in terms of balanced and unbalanced forces acting on the box.