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

---

Definitions:

Intervention Strategy

A plan or method designed to intervene in a situation in order to change the outcome or influence the course of events.

Task-Centered

Task-centered refers to an approach or methodology that focuses primarily on the completion of specific tasks or objectives, often in a work or therapeutic setting.

Reactance Theory

A psychological theory suggesting that people act against threats to their freedoms or choices to maintain a sense of control.

Psychodynamic Theory

A psychological perspective that emphasizes unconscious processes and childhood experiences in shaping behavior and personality.