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Lets suppose if a pure Si crystal has 5 X 10 28 atoms m -3. It is dopped by 1 PPM concentration of pentavelents As( arsenic). Calculate the number of electrons and holes. Ni = 1.5 X 10 16 m -3.
How much time is necessary for the torso to come to rest
If the company is presently selling 45,000 units, but plans to spend an additional $108,000 on an advertising program, explain how many additional units must the company sell to earn the same net income it is now making?
Calculate the momentum of a photon having a wavelength of 53.0 nm and Find the velocity of an electron having the same momentum
A CD has a mass of 17 g and a radius of 6.0 cm. When inserted into a player, determine the net torque acting on it
A car travelling at 37 {rm m/s} runs out of gas while travelling up a 7.0{rm ^ {circ}} slope. How far would it coast before starting to roll back down.
A rock is thrown from the roof of a building, with an initial velocity of 10.0 m/s at an angle of 30.0 ° above the horizontal. What is the height of the building
In a Young's double slit experiment, if the separation between the two slits is 0.050mm, find the spacing between the first order and second order bright fringes for light with wavelength of 600nm
A vessel whose walls are thermally insulated contains 2.5 {rm kg} of water and 0.6 {rm kg} of ice, all at a temperature of 0.0 ^circ {rm{C}}. The outlet of a tube leading from a boiler in which water is boiling at atmospheric pressure is inserted ..
A light wave has a 670{\rm nm} wavelength in air. Its wavelength in a transparent solid is 420{\rm nm}. What is the light's frequency in the solid
A bomber is flying horizontally over level terrain at a speed of 260 m/s relative to the ground and at an altitude of 2.60 km. At what angle from the vertical was the bombsight set
You are given a pendulum composed of a 0.038 kg mass on the end of a 0.6 m long massless string. compute the velocity of the mass as it passes through the vertical
Calculate the kinetic energy a proton gains if it is accelerated, throug a potential difference of 1.00 V
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