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Determine the total number (states/cm3) of energy states in silicon between Ev and Ev -4 kT at T=350 K. (effective mass m*p=0.56 m0)
Determine the total number (states/cm3) of energy states in gallium arsenide GaAs between Ec and Ec+3kT at T=325 K (effective mass m*n = 0.067m0).
A 4.60kg package slides 1.59m down a long ramp that is inclined at 12.2 m below the horizontal. Calculate the work done on the package by friction
The primary coil of a transformer makes 40 turns around the iron core and the secondary coil of that transformer makes 600 turns. what is the secondary voltage
find out the z-component of the block's momentum after the kick.
A rifle with a barrel length of 65 cm fires a 9 g bullet with a horizontal speed of 380 m/s. find resistive force does the wood exert on the bullet
a 3 micro-colomb charge is located 1m from a 5 micro-colomb charge. what new distance between the two charges would
Two 2.00 cm X 2.00 cm plates that form a parallel-plate capacitor are charged to ± 0.708 nC. had are the electric field strength inside and the potential difference across the capacitor if the spacing between the plates is (a) 1.00 mm and (b) 2.00 ..
A puck of mass 0.165 kg, initially resting on ice, is hit by a stick to gain a speed of 32.0 m/s and then slides 25.0 m to lose 5.00% of its kinetic energy. What is the kinetic friction coefficient between the ice and puck
An ancient club is found that contains 100 g of pure carbon and has an activity of 7 decays per second. Determine its age assuming that in living trees the ratio of14C/12C atoms is about 1.00 × 10-12. Note that the half life of carbon-14 is 5700 y..
With what tension must a rope with length 2.80m and mass 0.170 kg be stretched for transverse waves of frequency 41.0Hz to have a wavelength of 0.910m
120 gr of steam at 102 degree celsius is pumped into a well insulated container holding 500 gr of h2o water at 35.0
A 70 Watt light bulb operates on a potential difference of 75 Volt. Find what is the current in the bulb
A proton moving at 3.90 X 10^6 m/s through a magnetic field of magnitude 1.76 T experiences a magnetic force of magnitude 8.40 X 10^-13 N. What is the angle between the proton's velocity and the field
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