While Flying Horizontally in an Airplane,you Notice That a String

question 26

Multiple Choice

While flying horizontally in an airplane,you notice that a string dangling from the overhead luggage compartment hangs at rest at 15° away from the vertical toward the front of the plane.Using this observation,you can conclude that the airplane is

• A)moving forward.
• B)moving backward.
• C)accelerating forward.
• D)accelerating backward.
• E)not accelerating because the string is at rest.

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Definitions:

Semicircular Canals

Structures in the inner ear involved in maintaining balance and sensing head rotation.

Cochlea

Spiral-shaped structure of the vertebrate inner ear containing the sensory receptors for hearing.

Inner Ear

Portion of the ear consisting of a vestibule, semicircular canals, and the cochlea where equilibrium is maintained and sound is transmitted.

Aqueous Humor

A clear fluid that fills the space in the front part of the eye between the lens and the cornea.