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(a) De?ne the 'mean free path' for a neutron in a material.
Water is used as the moderator in a PWR. Calculate the mean free path of a thermal neutron in water given that the absorption cross section for thermal neutrons in water is σ = 0.66 barns.
What are the consequences for the spacing of the fuel rods in a PWR?
You may assume the formula λ = 1/σN and the density of water ρ = 1000kg m-3
(b) A breeder reactor operates at a rating of 500 MW per tonne of 233U.
What other element is required for the production of 233U in the breeding process?
If the breeding ratio B = 1.16, and the reactor is run for 10 years, calculate how much surplus 233U is produced per tonne of 233U consumed assuming an energy release of 200 MeV per fission.
What will most likely cause arcing at the switch contacts.
The drawing shows four point charges. The value of q is3.1 μC, and the distance d is 0.89 m. Find the total potential at the location P. Assume that the potential of a point charge is zero at infinity.
two 0.50g spheres are charged equally and placed 1.7cm apart. when released they begin to accelerate at 130ms2 . what
Manufacturers of headache remedies routinely claim that their own brands are more potent pain relievers than the competing brands. Find the number of molecules of pain reliever in the standard dose of Tylenol
Find the distance from the mirror to the point where the reflected rays meet.
A metal wire of mass 91 kilogram slides without friction on two horizontal rails spaced a distance of 73 meter apart. Determine the velocity of the wire at t = 95 second, assuming it to be at rest at t =0
Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 8.30 cm-3 and their speed is about 460 km/s. Find the current density of these protons
a pure sample of atomic gas has atoms with six principal quantum numbers that can yield several emission lines. what is
To determine the location of her center of mass, a physics student lies on the lightweight plank supported by two scales 2.50 apart, as indicated . If left scale reads 300 , and right scale reads 122 .
four standing wave segments or loops are observed on a string fixed at both ends as it vibrates at a frequency of 140
A 580-turn solenoid is 30 long and 1.9 in diameter and carries 67. How much magnetic energy does it contain
When the sun is directly overhead, a hawk dives toward the ground with a constant velocity of 6.90 m/s at 70.0 degrees below the horizontal. find the speed of her shadow on the level ground
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