3. some scientists create
new materials not
found in nature, such as
special fabrics, metal
and carbon alloys, and
plastics. choose a
material that you think
isn't found in nature.
then describe its useful
properties.

During which time interval does the object travel approximately 10 meters

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.

What’s the theoretical yield of solid lead