A Proton Is Projected with a Velocity of 7 $1.60 \times 10 ^ { - 19 } \mathrm { C }$

question 142

Multiple Choice

A proton is projected with a velocity of 7.0 km/s into a magnetic field of 0.60 T perpendicular to the motion of the proton. What is the magnitude of the magnetic force that acts on the proton? (e = $1.60 \times 10 ^ { - 19 } \mathrm { C }$ )

• A) \(13 \times 10 ^ { - 16 } \mathrm {~N}\)
• B) \(6.7 \times 10 ^ { - 16 } \mathrm {~N}\)
• C) \(0 \mathrm {~N}\)
• D) \(3.4 \times 10 ^ { - 16 } \mathrm {~N}\)
• E) \(4.2 \times 10 ^ { - 16 } \mathrm {~N}\)

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Definitions:

Control Group

In an experiment, the group that is not exposed to the treatment, serving as a comparison point for assessing the effect of that treatment.

Independent Variable

In an experiment, it is the variable that is controlled or changed to test its effects on the dependent variable.

Chocolate

A sweet, typically brown food preparation of roasted and ground cacao seeds, often sweetened and consumed as confectionery.

Medical Placebos

Substances with no therapeutic effect that are used in clinical trials to compare the effects of actual drugs on patients' health conditions.