If a rectangle block measures 118.87 cm by 29.87cm by 2.30cm and has a mass of 4.9957kg what is the density of the material in g/ml

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.

Light waves travel than sound waves.

The same side of the moon always faces earth because the