Communications Satellites Are Usually Placed in Geosynchronous Orbits, a Distance

question 12

Multiple Choice

Communications satellites are usually placed in geosynchronous orbits, a distance of 4.43 × 10⁷ m from the center of Earth. What is the time lag for a signal sent from one point on Earth's surface to another via such a satellite? The radius of Earth R_E = 6.370 × 10⁶ m.)

• A) 0.13 s
• B) 0.25 s
• C) 0.51 s
• D) 0.29 s
• E) 0.15 s

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Definitions:

Interval Variables

Quantitative variables where the intervals between the values are equal and meaningful, allowing for comparisons and mathematical operations.

Symmetric Distribution

A distribution where the left and right sides are mirror images of each other around the central point.

Skewed Distribution

A probability distribution that is not symmetrical, where one tail is longer or fatter than the other.

Bell Shaped

A bell-shaped distribution refers to a data distribution that is symmetric and has a single peak in the middle, resembling the shape of a bell, commonly associated with the normal distribution.