A Proton Moving at a Speed of 3

question 42

Multiple Choice

A proton moving at a speed of 3.8 × 10⁶ m/s cuts across the lines of a magnetic field at an angle of 40°.The strength of the field is 0.25 × 10−⁴ T.What is the magnitude of the force acting on the proton? (q_p = 1.6 × 10−¹⁹ C)

• A) 1.4 × 10−¹⁷ N
• B) 2.3 × 10−¹⁷ N
• C) 9.8 × 10−¹⁸ N
• D) 5.1 × 10−¹⁸ N

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Definitions:

Investigator

A person who carries out a systematic inquiry or study to discover facts or information.

Illusory Correlation

is the perception of a relationship between two variables even when no such relationship exists.

Premonition

A strong feeling that something is about to happen, especially something unpleasant.

Random Assignment

Assigning participants to experimental and control groups by chance, thus minimizing preexisting differences between those assigned to the different groups.