A5.0 g sample of aluminum with a specific heat of 0.90 j/(g °c) was heated from 22.1°c to 32.1°c. how much heat, to the nearest joule, did the aluminum gain?

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.