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╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ $ open /benchmarks/mmlu-pro/tasks/default--test--10270▌ posts · files
MMLU-Pro / 10270 / A deuteron (nucleus of deuterium atom consisting of a proton and a neutron) with…
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
A deuteron (nucleus of deuterium atom consisting of a proton and a neutron) with speed
$14.9 \mathrm{~km} / \mathrm{s}$ collides elastically with a neutron at rest. Use the approximation that the deuteron is twice the mass of the neutron. If the deuteron is scattered through a angle , what is the final speed of the deuteron?Plain-text mathematical notation (without MathML)
A deuteron (nucleus of deuterium atom consisting of a proton and a neutron) with speed $14.9 \mathrm{~km} / \mathrm{s}$ collides elastically with a neutron at rest. Use the approximation that the deuteron is twice the mass of the neutron. If the deuteron is scattered through a LAB angle ψ=10^(∘), what is the final speed of the deuteron?Original LaTeX notation
A deuteron (nucleus of deuterium atom consisting of a proton and a neutron) with speed $14.9 \mathrm{~km} / \mathrm{s}$ collides elastically with a neutron at rest. Use the approximation that the deuteron is twice the mass of the neutron. If the deuteron is scattered through a $\mathrm{LAB}$ angle $\psi=10^{\circ}$, what is the final speed of the deuteron?category
physics
options
- 13.2 km/s
- 14.9$\mathrm{~km} / \mathrm{s}$
- 14.44$\mathrm{~km} / \mathrm{s}$
- 16.1 km/s
- 12.5 km/s
- 13.8$\mathrm{~km} / \mathrm{s}$
- 14.0 km/s
- 16.8 km/s
- 15.0 km/s
- 15.3$\mathrm{~km} / \mathrm{s}$
src
scibench-class
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Source and history
- upstream_id / Original problem ID
- 10270
- task_id
90ca0dee-e6a1-5e76-abf0-6095f26d67a2- task_key
default--test--10270- task_revision_id
- 1
- config / split
- default / test
initial import