A Point Charge Q of Mass 8

question 38

Multiple Choice

A point charge Q of mass 8.50 g hangs from the horizontal ceiling by a light 25.0-cm thread.When a horizontal electric field of magnitude 1750 N/C is turned on,the charge hangs away from the vertical as shown in the figure.The magnitude of Q is closest to

• A) 27.5 µC.
• B) 47.6 µC.
• C) 55.0 µC.
• D) 3.0 µC.
• E) 3.5 µC.

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Definitions:

Multinomial Experiment

An experiment consisting of a fixed number of trials where each trial has multiple possible outcomes.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect exists within a set of given observations or parameters.

Level of Significance

The probability of rejecting the null hypothesis when it is actually true, typically denoted as alpha (α).

Contingency Table

A tabular method for displaying the frequencies of different outcomes in a sample, allowing for analysis of the association between categorical variables.