A 46.0 g piece of tin has the initial temperature of 105.0 °C is dropped into 298.6 mL of water at 20.0 °C. What is the final temperature? Tin's
Cp is 0.228 J/gºC. Water's is 4.184 J/gºC.

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.