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1. Calculate the macroscopic thermal neutron absorption cross section for natural uranium. (ignore the trace amounts of 234U; the a/o of 235U in natural uranium is .72, and the a/o of the 238U is .9928).
2. Calculate the macroscopic thermal neutron absorption cross section for uranium enriched to 5% a/o 235U.
3. Calculate the mean free path for scattering of neutrons in light water. The scattering cross-section for water is 103 barns and the number density of water is .03343x1024atoms/cm3.
4. Plot on an Excel graph the change in the absorption cross section of 10B over the temperature range of 68°F to 600°F. Assume the microscopic absorption cross-section of 10B is 3840 barns at 68°F.
A solar cell generates a potential difference of 0.0984 V when a 500 ? resistor is connected across it, What is the internal resistance of the solar cell
Suppose a muon produced as a result of a cosmic ray colliding with a nucleus in the upper atmosphere has a velocity v = 0.9500c. What distance is this in the muon's frame
A square steel plate is 0:20 m on a side and 4:00 mm thick. Find the shear strain that results if a force of magnitude 8x10^4 N applied to two of the four long sides parallel to the sides
An 830-kilogram sports car can drive around an unbanked turn at a maximum speed of 58 m/s without slipping. Find what would be the maximum speed if no down force acted on the car
In an elastic collision both momentum & KE are conserved. In inelastic collisions momentum is conserved but KE is not. Explain what happens in an inelastic collision
A certain conductor has 7.60 1028 free electrons per cubic meter, a cross-sectional area of 4.00 ? 10-6 m2, Find the drift speed of the electrons in the conductor
A charged particle of mass m and charge +q is placed in the vertical electrical field E(x)= A-Cx, Find expression describing the angular frequency of the charged particle oscillations
A pendulum consists of a 3.7 kg stone swinging on a 4.4 m string of negligible mass. The stone has a speed of 8.2 m/s when it passes its lowest point. What is the greatest angle with the vertical that the string will reach during the stone's motion
A 4.0-kg block slides down an inclined plane that makes an angle of 31° with the horizontal. Starting from rest, the block slides a distance of 2.5 m in 4.8 s. Find the coefficient of kinetic friction between the block and plane.
an am radio station broadcasts an electromagnetic wave with a frequency of 599 khz whereas an fm station broadcasts an
A ball is kicked with initial velocity of 14.9 m/s in the horizontal direction and 15.7 in the vertical direction. At what speed does the ball hit the ground
A block of mass m1 = 0.55kg is placed on top of another block of mass m2 =0.91kg, What minimum coefficient of static friction between the two blocks will prevent the upper one from slipping
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