Radio waves travel at the speed of light which is 3.00 x 10^8. how many minutes does it take for a radio message to reach saturn if saturn is 7.9 x 10 8 km form earth.

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.