It is proposed to produce 25 kg of 90 w/o enriched uranium for a submarine reactor by enriching 20 w/o fuel from a research reactor. (a) how much fresh reactor fuel would be required? (b) compute the total swu required. (c) compare the swu/kg required to produce 20 w/o fuel starting from natural uranium, with 90 w/o material beginning at 20 w/o (tail enrichment = 0.2 w/o).

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

a electromagnetic waves

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over