The possible reactions.

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235/92U+1/0n→ 140/54Xe+94/38Sr+2 1/0n mass of 235/92U=235.04393u mass of 140/54Xe=139.92144u mass of 94/38Sr=93.91523u mass of 1/0n=1.008665u Part A: What is the reaction energy Q of this reaction? Use c2=931.5MeV/u. Part B: Using fission, what mass m of uranium-235 would be necessary to supply all of the energy that the United States uses in a year, roughly 1.0×10^19J ?

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Chapter 29.6, Problem 29.4QQ

To determine

The possible reactions.

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235/92U+1/0n→ 140/54Xe+94/38Sr+2 1/0n mass of 235/92U=235.04393u mass of 140/54Xe=139.92144u mass of 94/38Sr=93.91523u mass of 1/0n=1.008665u Part A: What is the reaction energy Q of this reaction? Use c2=931.5MeV/u. Part B: Using fission, what mass m of uranium-235 would be necessary to supply all of the energy that the United States uses in a year, roughly 1.0×10^19J ?

The carbon isotope 14C is used for carbon dating of archeological artifacts. 14C (mass 2.34 x 10-26 kg) decays by the process known as beta decay in which the nucleus emits an electron (the beta particle) and a subatomic particle called a neutrino. In one such decay, the electron and the neutrino are emitted at right angles to each other. The electron (mass 9.11 x 10-31 kg) has a speed of 5.00 x 107 m/s and the neutrino has a momentum of 8.00 x 10-24 kg • m/s. What is the recoil speed of the nucleus?