What is the mechanical advantage of a lever that is 20 meters long and uses 10,200 N to lift a 6,000-kg dump truck 3 meters
into the air?

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 .

What is the length x of the side of the triangle below? (hint: use the cosine function)

Why do astronauts in the space shuttle weigh less?