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1. Compute the thermal equilibrium constant K of the electron-hole pair generation-recombination reaction in silicon at 300K, 600K and 900K.
2. A test charge Is generated Inside a pure Si at T=300K. How long does it take for the test charge to decay to 10% of its original magnitude?
Where does the test charge go and give the reasons? Describe carefully what is meant by a test charge - its volume, the number of electrons it contains, etc.
Two wires are identical, except that one is aluminum and one is nichrome. The aluminum wire has a resistance of 0.21 ?. What is the resistance of the nichrome wire
A small rock with mass 0.200 kg is fastened to a massless string with length 0.750 m to form a pendulum. What is tension in the string at the lowest point
A bullet is fired through a board 10.0 cm thick in such a way that the bullet's line of motion is perpendicular to the face of the board, Find the acceleration of the bullet as it passes through the board
A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (3.94 m, 5.13 m) while a constant force acts on it. How much work is done by the force on the coin during the displacement
An object is placed 8 cm in front of a convex lens of focal length 6 cm. Find the image location by drawing a ray tracing diagram to scale
The walls of a blackbody cavity are at a temperature of 27o C. What is the frequency of the radiation of maximum intensity
a 216 kg log pulled up a ramp by means of a roe that is parallel to the surface of the ramp. the ramp is inclined at 30
A person pulls a toboggan for a distance of 43.6 m along the snow with a rope directed 28.3 ° above the snow. The tension in the rope is 91.3 N. How much work is done on the toboggan by the tension force
A. What is the maximum frictional force that the ground can exert on the ladder at its lower end? B. What is the actual size of the frictional force when the painter has climbed 1.2417 m along the ladder?
Robin hood aims a 500 g arrow at a 2 kg bird perched on a tree. The arrow is released with a speed of 40 m/s at an angle 30 degrees to the horizon. How far from the tree base do the bird and arrow land
A 1 490-kg automobile has a wheel base (the distance between the axles) of 3.20 m. Find the force exerted by the ground on each wheel
The SLAC national laboratory is the largest linear accelerator in the world, and can accelerate electrons through a potential difference of 90 billion volts (9x10^10 V) through a tube 3.2 km long. How much energy do the electrons have at the end ..
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