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MMLU-Pro / 9783 / A particle is projected horizontally with a velocity of 10^4 m …

Problem

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

question

A particle is projected horizontally with a velocity of 10^4 m \bullet s^-1 in such a direction that it moves at right angles to a horizontal magnetic field of induction, of magnitude 4.9 × 10^-5Wb\textbullet m^-2 . The particle, which carries a single electronic charge, stays in the same horizontal plane. What is its mass?

category

physics

options

  1. 1.0 × 10^-18 kg
  2. 2.0 × 10^-22 kg
  3. 8.0 × 10^-21 kg
  4. 7.5 × 10^-20 kg
  5. 6.4 × 10^-20 kg
  6. 4.9 × 10^-5 kg
  7. 5.0 × 10^-23 kg
  8. 9.8 m/s^-2
  9. 1.6 × 10^-19 kg
  10. 3.2 × 10^-19 kg

src

stemez-Physics

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Source and history

upstream_id / Original problem ID
9783
task_id
5889bf65-5e67-5b67-b288-7dbcf8b00f9e
task_key
default--test--9783
task_revision_id
1
config / split
default / test

Official source

initial import