Which quantity causes a change in linear momentum?

How does the space charge width change with forward and reverse bias? also, calculate the space charge width for a reverse bias of 4v on a silicon pn junction at t = 300k and doping concentrations of na = 5x1015cm-3 , nd = 5x 1016 cm-3 .

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Why should seat belts not be mandatory quick plz