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Physics, 21.06.2019 16:20
Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors
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Physics, 21.06.2019 19:10
Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.
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Physics, 22.06.2019 11:00
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
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Physics, 22.06.2019 12:20
The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.
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You run 3 miles in 15 minutes. What is your speed?...
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