Consider a bar of silicon having carrier concentration n0=1015 cm-3 and ni=1010cm-3. assume the excess carrier concentrations to be n=1013cm- 3, calculate the quasi-fermi energy level at t-300k? (a) 0.2982 ev (b) 0.2984 ev (c) 0.5971 ev (d) 1 ev

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

Abeverage can is made of 3004-h19 aluminum alloy (elastic modulus 69 gpa, tensile yield strength 285 mpa, density 2.72 g/cm^3). the dimensions on the can are approximated as a thin-walled cylinder with a height of 4.83 inches, diameter of 2.60 inches. empty the can has a mass of 14.2 g. determine: a. the wall thickness of the cylinder b. assuming a pinned-pinned condition what is the critical load? c. assuming a fixed-fixed condition what is the critical load?

Ajoint produces movement when its angle decreases. which type of movement is it?