A Charged Particle (M = 5

question 65

Multiple Choice

A charged particle (m = 5.0 g, q = −70 μC) moves horizontally at a constant speed of 30 km/s in a region where the free fall gravitational acceleration is 9.8 m/s² downward, the electric field is 700 N/C upward, and the magnetic field is perpendicular to the velocity of the particle. What is the magnitude of the magnetic field in this region?

• A) 47 mT
• B) zero
• C) 23 mT
• D) 35 mT
• E) 12 mT

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Definitions:

Peripartum

refers to the period shortly before, during, and immediately after childbirth.

Catatonic

A state of psycho-motor immobility and behavioral abnormality marked by stupor, rigidity, or even excessive, pointless motor activity.

Basal Ganglia

Groups of neurons located deep within the cerebral hemispheres involved in controlling movement and coordination.

Gray Matter

The darker-colored areas of the brain and spinal cord, consisting mainly of neuronal cell bodies and branching dendrites.