An Airplane Is Flying Through a Thundercloud at a Height

question 7

Multiple Choice

An airplane is flying through a thundercloud at a height of 2 500 m.(This is a very dangerous thing to do because of updrafts,turbulence,and the possibility of electric discharge. ) If there is a charge concentration of +42 C at height 4 000 m within the cloud and −42 C at height 500 m,what is the magnitude of the electric field E at the aircraft? (k_e = 8.99 × 10⁹ N·m²/C²)

• A)9.4E+4 N/C
• B)1.7E+5 N/C
• C)6.2E+4 N/C
• D)2.6E+5 N/C
• E)​1.9E+5 N/C

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Definitions:

Number of Observations

The total count of data points or entries collected during a study or research project.

F-statistic

A ratio used in statistical analysis to assess the significance of a group of variables in a regression model relative to the variation unexplained by the model.

Degrees of Freedom

The number of independent values or quantities that can vary in the analysis of statistical data.

Treatments

The different levels or categories of the independent variable applied in an experiment.