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Calculate the location of Ei in silicon at liquid nitrogen temperature (77 K), at room
temperature (300 K), and at 100 °C (let mp =1.0 m0 and mn= 0.19 m0). Is it reasonable to assume
that Ei is in the center of the forbidden gap?
Derive an expression for density of state for particle 3-D crystal having mass m with
energy ranging between E and E + dE
The depth of the fluid is 10 m. What is the specific gravity if the pressure of the fluid at 10 m is 100 kPa?
What force must be exerted on the master cylinder of a hydraulic lift to support the weight of a 2500-kg car (a large car) resting on the slave cylinder? The master cylinder has a 4.00-cm diameter and the slave has a 25.0-cm diameter.
Find the rotational inertia of 21.5 kilograms thin-walled cylindrical threshing drum of a modified palay thresher having a radius of 9 inches.
Find the rotational inertia of 21.5 kilograms thin-walled cylindrical threshing drum of a modified palay thresher having a radius of 9 inches.
A block of aluminum measures 4.0 cm x 5.0 cm x 2.0 cm is completely immersed in a tank of water.
Calculate the buoyant force and the mass of the displaced water (Remember the density of water is 1 g/mL) (g=10m/s2) Noise canceling earphones are an example of
A. Constructive interference
B. Destructive enterference
C. Beat
D. Resonance
What current must flow if 0.24 coulombs is to be transferred in 15ms? *
The unit of quantity of electricity is the
