An Electron Moves with a Speed Of $8.0 \times 10 ^ { 6 } \mathrm {~m} / \mathrm { s }$

question 17

Multiple Choice

An electron moves with a speed of $8.0 \times 10 ^ { 6 } \mathrm {~m} / \mathrm { s }$ along the $+ x$ -axis. It enters a region where there is a magnetic field of $2.5 \mathrm {~T}$ , directed at an angle of $60 ^ { \circ }$ to the $+ x$ -axis and lying in the $x y$ -plane.
Calculate the magnitude of the acceleration of the electron. $\left( e = 1.60 \times 10 ^ { - 19 } \mathrm { C } , m _ { e 1 } = 9.11 \times 10 ^ { - 31 } \right.$ $\mathrm { kg }$ )

• A) \(1.3 \times 10 ^ { 18 } \mathrm {~m} / \mathrm { s } ^ { 2 }\)
• B) \(3.0 \times 10 ^ { 18 } \mathrm {~m} / \mathrm { s } ^ { 2 }\)
• C) \(0 \mathrm {~m} / \mathrm { s } ^ { 2 }\)
• D) \(1.3 \times 10 ^ { - 18 } \mathrm {~m} / \mathrm { s } ^ { 2 }\)
• E) \(3.0 \times 10 ^ { - 18 } \mathrm {~m} / \mathrm { s } ^ { 2 }\)

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Definitions:

Abstract Internal Traits

The unobservable qualities or characteristics that form an individual's personality, such as thoughts, feelings, and desires.

External Traits

Observable characteristics of an individual, which can be physical or behavioral, influenced by both genetic and environmental factors.

External Rewards

Incentives provided from an external source to motivate behavior, such as money, grades, or praise.

Perspective-Taking Skills

The ability to understand a situation or concept from an alternative point of view, including another person's thoughts, feelings, and motivations.