Calculate the volume of a container that is 8.9 centimeters long, 5.2 centimeters wide, and 2.55 cm tall. choose an appropriate number of digits for your answer based on the precision of the data supplied. (volume = length ´ width ´ height)

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.