Engineering, 17.07.2019 22:20 apalacios3503
Asimple solar cell uses what is called a photovoltaic effect in a semiconductor to create charges that can do work. using what you know about what semiconductors look like in visible light, explain what you think the "photovoltaic "effect is and why are semiconductors used rather than insulators or metals?
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Engineering, 04.07.2019 03:10
What precautions should you take to prevent injuries when dealing with heavy loads?
Answers: 1
Engineering, 04.07.2019 18:10
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
Answers: 3
Engineering, 04.07.2019 18:10
Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?
Answers: 2
Engineering, 04.07.2019 18:10
Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
Answers: 1
Asimple solar cell uses what is called a photovoltaic effect in a semiconductor to create charges th...
Mathematics, 19.09.2019 03:00
Mathematics, 19.09.2019 03:00
Mathematics, 19.09.2019 03:00
Mathematics, 19.09.2019 03:00
Mathematics, 19.09.2019 03:00
Mathematics, 19.09.2019 03:00
Mathematics, 19.09.2019 03:00
Mathematics, 19.09.2019 03:00
Mathematics, 19.09.2019 03:00