medium · MCAT chem-phys
A proton moves with a velocity of 1.0 × 10^6 m/s perpendicular to a uniform magnetic field.
What happens to the proton's speed?
- The speed decreases due to the opposing magnetic force.
- The speed increases as the magnetic field adds kinetic energy.
- The speed changes only if the proton is moving parallel to the field.
- The speed remains constant because the magnetic field does zero work.
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