A Particle with a Charge Of $+ 4.0 \mu \mathrm { C }$

question 15

Multiple Choice

A particle with a charge of $+ 4.0 \mu \mathrm { C }$ has a mass of $5.0 \mathrm {~g}$ . What magnitude electric field directed upward will exactly balance the weight of the particle?

• A) \(4.4 \times 10 ^ { 4 } \mathrm {~N} / \mathrm { C }\)
• B) \(5.1 \times 10 ^ { 4 } \mathrm {~N} / \mathrm { C }\)
• C) \(1.2 \times 10 ^ { 4 } \mathrm {~N} / \mathrm { C }\)
• D) \(4.1 \times 10 ^ { 4 } \mathrm {~N} / \mathrm { C }\)
• E) \(8.2 \times 10 ^ { 4 } \mathrm {~N} / \mathrm { C }\)

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Definitions:

Stepwise Regression

A technique for creating regression models where the selection of predictor variables is done through an automated process.

Correlation Matrix

A table showing the correlation coefficients between sets of variables, indicating how changes in one variable are associated with changes in another.

Independent Variables

Factors in a study or simulation that are intentionally altered to observe their impact on outcome variables.

Least Squares Regression

A statistical method for estimating the relationships among variables.