How much does each one
equal? Write the number in the
box.
(a) 2 m =
cm
(b) 3 cm =
mm
(C) 1.5km =
m
(d) 275 mm =
cm

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.