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The minority carrier lifetime of a material is the average time which a carrier can spend in an excited state after electron-hole generation before it recombines. Calculate the minority carrier lifetime (in μs) for a single crystalline solar cell having diffusion length of Ld=200μm and minority carrier diffusivity of D=27cm2/s.
If the coefficient ofkinetic friction between a 35-kg crate and the floor is 0.3, what horizontal force is required to move the crate at a steady speed across the floor
A point source of light is submerged 2.53 m below the surface of a lake and emits rays in all directions. On the surface of the lake, directly above the source, the area illuminated is a circle. What is the maximum radius that this circle could have?
Two charges, -2.2 microCoulombs and -4.8 microcoulombs, are located at (-0.65m, 0) and (0.65,0), respectively. compute the location of the point where the electric field is zero
discuss general considerations of various electromagnetic radiations at many wavelengths to study diverse astronomical
q1. a goldfish in a spherical fish bowl of radius r is at the level of the center c of the bowl and at distance l r2.8
A 2 meter long wire carrying a current of 30 Amp is in a 3 T magnetic field. Find the magnitude of the magnetic force acting on wire
A 2.50m long pipe closed at one end, Find the number of the harmonic corresponding to this frequency
The concrete encloses one steel reinforcing rod with cross-sectional area 1.00cm2. The rod joins two strong end plates. The cross-sectional area of the concrete perpendicular to the rod is 47.5 cm2. Young's modulus for the concrete is 3.00 x 10^10 N/..
An electron is confined to a finite square well whose "walls" are 8.0 eV high. estimate the width of the well
the top of pikes peak is 14100 ft above sea level. neglecting the variation of t with altitude and using the average
a physics student swings a pail of water in a vertical circle 1.0 m in radius at a constant speed. if the water is not
An air bubble has a volume of 1.25 cm3 when it is released by a submarine 100 m below the surface of a lake. What is the volume of the bubble when it reaches the surface
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