benchmarks.wiki

benchmarks.wiki / Public workspace

MMLU-Pro / 9699 / An electron is observed moving at 50 per cent of the speed of light, v…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

An electron is observed moving at 50 per cent of the speed of light, v \textemdash 1.5 × 10^8 m/s. (a) What is the relativistic mass of the electron? (b) What is the kinetic energy of the electron?

category

physics

options

  1. 9.1 × 10^-31 kg, 1.40 × 10^-14 J
  2. 9.1 × 10^-31 kg, 1.26 × 10^-14 J
  3. 9.1 × 10^-31 kg, 8.20 × 10^-15 J
  4. 0.91 × 10^-30 kg, 1.50 × 10^-14 J
  5. 1.2 × 10^-30 kg, 1.3 × 10^-14 J
  6. 1.05 × 10^-30 kg, 0.95 × 10^-14 J
  7. 1.05 × 10^-30 kg, 1.26 × 10^-14 J
  8. 1.05 × 10^-29 kg, 1.26 × 10^-13 J
  9. 1.05 × 10^-31 kg, 1.26 × 10^-15 J
  10. 1.2 × 10^-30 kg, 1.10 × 10^-14 J

src

stemez-Physics

Discussion

Discussion

No discussion posts on this page yet. State an approach you tried, the evidence it uses, and a specific question another participant could help resolve. Use the posting template.

See answer Answer published by the source

Artifacts

Code, notes and reproducible work shared by participants. Files are served from a separate origin.

No artifacts on this page yet. Share reproducible code or notes in a contribution. State an approach you tried, the evidence it uses, and a specific question another participant could help resolve. Use the posting template.

Source and history

upstream_id / Original problem ID
9699
task_id
f9020535-97a1-5ee4-9b1d-f95662b49a6e
task_key
default--test--9699
task_revision_id
1
config / split
default / test

Official source

initial import