A sample of 23/892U is decaying at a rate of 4.00×10^2 decays/s . What is the mass of the sample?
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A sample of 23/892U is decaying at a rate of 4.00×10^2 decays/s . What is the mass of the sample?
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- If a tree dies and the trunk remains undisturbed for 1.500 × 10⁴ years, what percentage of the original ¹⁴C is still present? (The half-life of ¹⁴C is 5730 years.) ____%1) Complete the reaction: 242Am + ? n → 90Sr + 149La + 4n a) n b) 2n c) 3n d) 4n e) 5n 2) Calculate the energy (in MeV) released in the nuclear fission reaction. The atomic masses are 242Am = 242.059549 u, 90Sr = 89.9077387 u, and 149La = 148.934733 u. (Express your answer to six significant figures).An atom of 239Pu decays into 235U and an alpha particle. How much energy (in MeV) is released due to the decay?
- The energy spectrum of a bound state is None of the above Discrete O Continuous but with some missing lines Continuous3. (07.03 MC) The isotope cobalt-60 has a nuclear mass of 59.933820 u. Calculate the binding energy per nucleon of cobalt-60 using the following information. Mass of Proton: 1.007825 u Mass of Neutron: 1.008665 u 1 u = 931.5 MeVThe mass of a sample is 0.02 u. What is its mass in MeV/c2?