Which of the following properties describes plasma? O A. It can change shape but not volume.
O B. It can change shape and volume.
O c. It can change volume but not shape.
O D. It cannot change shape or volume.

Particles vibrate in a rigid structure and do not move relative to their neighbors.

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.

Which of the following units is not an official si unit? mole liter kilogram ampere