Aclock face has negative point charges –q, –2q, – –12q fixed at the positions of the corresponding numerals. the clock hands do not perturb the net field due to the point charges. at what time does the hour hand point in the same direction as the electric field vector at the center of the dial? break the time into (a) hours and (b) minutes. (hint: use symmetry.)

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

v 154.9= 0.9 length length s little over 154.9cm

increase masses, decrease separation