Two Moons Orbit a Planet in Nearly Circular Orbits

question 28

Multiple Choice

Two moons orbit a planet in nearly circular orbits. Moon A has orbital radius r, and moon B has orbital radius 4r. Moon A takes 20 days to complete one orbit. How long does it take moon B to complete an orbit?

• A)20 days
• B)40 days
• C)80 days
• D)160 days
• E)320 days

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Definitions:

Occipital Lobe

The area of the cerebral cortex situated in the brain's rear, tasked with interpreting visual data.

Occipital Lobe

Positioned at the brain's posterior, this segment of the cerebral cortex is charged with the analysis of visual stimuli.

Frontal Lobe

is the part of the brain located at the front of each cerebral hemisphere, responsible for voluntary movement, expressive language, and managing higher level executive functions.

Cerebrospinal Fluid

A transparent, colorless fluid located in the brain and spinal cord, serving as a protective padding for the brain's cortex, offering fundamental mechanical and immunological defense.