A uranium-238 nucleus at rest undergoes radioactive decay, splitting into an alpha particle (helium nucleus) with...
A uranium-238 nucleus at rest undergoes radioactive decay,
splitting into an alpha particle (helium nucleus) with mass
6.64×10-27 kg and a thorium nucleus with mass
3.89×10-25 kg. The measured kinetic energy of the alpha
particle is 4.49×10-13 J.
After the decay, what is the magnitude of the momentum of the
thorium nucleus?
| Incorrect. | Tries 1/20 | Previous Tries |
After the decay, what is the kinetic energy of the thorium nucleus?
7.664×10-15 J
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Homework Answers
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A uranium-238 nucleus at rest undergoes radioactive decay,
splitting into an alpha particle (helium nucleus) with...
A uranium nucleus (mass 238 u), initially at rest, undergoes a radioactive decay. After an alpha...
A uranium nucleus (mass 238 u), initially at rest, undergoes a radioactive decay. After an alpha particle ( mass 4.0 u) is emitted, the remaining nucleus is thorium (mass 234 u). If the alpha particle is moving at 0.050 times the speed of light, what is the recoil speed of the thorium nucleus?
(1 point) A Uranium-238 nucleus (U-238) decays to a Thorium-234 (Th234) by emitting an alpha particle...
(1 point) A Uranium-238 nucleus (U-238) decays to a Thorium-234 (Th234) by emitting an alpha particle (i.e. a Helium-4 nucleus): 1,228 +Th%d4 + He A Uranium nucleus has 92 protons in it while a Helium nucleus has 2 protons. The mass of a Helium nucleus is 6.645 x 10-27 kg. For this problem assume that the Uranium nucleus is initially at rest and the Thorium nucleus remains at rest after the decay. If the alpha particle is initially at rest...
Alpha decay is nuclear decay in which a helium nucleus is emitted. If the helium nucleus...
Alpha decay is nuclear decay in which a helium nucleus is emitted. If the helium nucleus has a mass of 6.646 ✕ 10-27 kg and is given 7.00 MeV of kinetic energy, what is its velocity? Answer: _________ c
A uranium-238 atom can break up into a thorium-234 atom and a particle called an alpha...
A uranium-238 atom can break up into a thorium-234 atom and a particle called an alpha particle, α-4. The numbers indicate the inertias of the atoms and the alpha particle in atomic mass units (1 amu = 1.66 × 10^−27 kg). When an uranium atom initially at rest breaks up, the thorium atom is observed to recoil with an x component of velocity of -2.6 × 10^5 m/s. How much of the uranium atom's internal energy is released in the...
A uranium-238 atom can break up into a thorium-234atom and a particle called an alpha particle,...
A uranium-238 atom can break up into a thorium-234atom and a particle called an alpha particle, α-4. The numbers indicate the inertias of the atoms and the alpha particle in atomic mass units (1 amu = 1.66 × 10−27 kg). When an uranium atom initially at rest breaks up, the thorium atom is observed to recoil with an x component of velocity of -2.1 × 105 m/s. How much of the uranium atom's internal energy is released in the breakup?...
A uranium-238 atom can break up into a thorium-234atom and a particle called an alpha particle,...
A uranium-238 atom can break up into a thorium-234atom and a particle called an alpha particle, α-4. The numbers indicate the inertias of the atoms and the alpha particle in atomic mass units (1 amu = 1.66 × 10−27 kg). When a uranium atom initially at rest breaks up, the thorium atom is observed to recoil with an x component of velocity of -2.2 × 105 m/s. Please give the answer in Joules
AU-238 atom undergoes alpha decay. The daughter atom then undergoes beta minus decay into a second...
AU-238 atom undergoes alpha decay. The daughter atom then undergoes beta minus decay into a second daughter atom. What is the second daughter atom? 0 U-235 Th-238 Th-234 O Pa-234 O Rn-222 Question 20 AU-238 atom (uranium-238) has a nucleus with 92 protons and an atomic mass of 238.0507882 u. What is the nuclear binding energy per nucleon in this atom? O 1.93 MeV 0 7.57 MeV O 12.3 MeV O 19.6 MeV O 1802 MeV
Thorium (with half-life T1/2 = 1.913 yr. and atomic mass 228.0287 u) undergoes alpha decay and...
Thorium (with half-life T1/2 = 1.913 yr. and atomic mass 228.0287 u) undergoes alpha decay and produces radium (atomic mass 224.0202 u) as a daughter nucleus. (Assume the alpha particle has atomic mass 4.002603 u.) 1) What is the decay constant of thorium? (Note that the answer must be in units of hrs-1.) λ = 2) What percent of thorium is left after 200 days? 3) The energy released from the decay of 10 g of thorium is used to...
A U-238 atom (uranium-238) has a nucleus with 92 protons and an atomic mass of 238.0507882...
A U-238 atom (uranium-238) has a nucleus with 92 protons and an atomic mass of 238.0507882 u. What is the nuclear binding energy per nucleon in this atom? 1.93 MeV 7.57 MeV 12.3 MeV 19.6 MeV 1802 MeV A proton has a kinetic energy of 7.5 MeV. What is the speed of an alpha particle that has the same DeBroglie wavelength as the proton? The mass of the alpha particle is 6.65E-27 kg. 9517 m/s 9.53E6 m/s 1833 m/s 2.38E13...
(d) Due to alpha decay, l mole of uranium-238 produces 2.96 106 alpha particles per second. Find the half-life, giving...
(d) Due to alpha decay, l mole of uranium-238 produces 2.96 106 alpha particles per second. Find the half-life, giving your answer in units of years. [5 marks] (e) The average mass of the atoms in a 0.100 kg block of pure carbon is 12.01 u. A small fraction of the atoms are radioactive, with a decay constant of 3.90 x 10-12s. If the activity of the carbon block is 97.8 Bq, calculate what fraction of the atoms are radioactive...
(1 point) A Uranium-238 nucleus (U-238) decays to a Thorium-234 (Th234) by emitting an alpha particle (i.e. a Helium-4 nucleus): 1,228 +Th%d4 + He A Uranium nucleus has 92 protons in it while a Helium nucleus has 2 protons. The mass of a Helium nucleus is 6.645 x 10-27 kg. For this problem assume that the Uranium nucleus is initially at rest and the Thorium nucleus remains at rest after the decay. If the alpha particle is initially at rest...
AU-238 atom undergoes alpha decay. The daughter atom then undergoes beta minus decay into a second daughter atom. What is the second daughter atom? 0 U-235 Th-238 Th-234 O Pa-234 O Rn-222 Question 20 AU-238 atom (uranium-238) has a nucleus with 92 protons and an atomic mass of 238.0507882 u. What is the nuclear binding energy per nucleon in this atom? O 1.93 MeV 0 7.57 MeV O 12.3 MeV O 19.6 MeV O 1802 MeV
A U-238 atom (uranium-238) has a nucleus with 92 protons and an atomic mass of 238.0507882 u. What is the nuclear binding energy per nucleon in this atom? 1.93 MeV 7.57 MeV 12.3 MeV 19.6 MeV 1802 MeV A proton has a kinetic energy of 7.5 MeV. What is the speed of an alpha particle that has the same DeBroglie wavelength as the proton? The mass of the alpha particle is 6.65E-27 kg. 9517 m/s 9.53E6 m/s 1833 m/s 2.38E13...
(d) Due to alpha decay, l mole of uranium-238 produces 2.96 106 alpha particles per second. Find the half-life, giving your answer in units of years. [5 marks] (e) The average mass of the atoms in a 0.100 kg block of pure carbon is 12.01 u. A small fraction of the atoms are radioactive, with a decay constant of 3.90 x 10-12s. If the activity of the carbon block is 97.8 Bq, calculate what fraction of the atoms are radioactive...
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