A 1000-Kg Car Whose Speed Is 80 Km/h (22

question 36

Multiple Choice

A 1000-kg car whose speed is 80 km/h (22.2 m/s) has a kinetic energy of

• A)25.2 kJ.
• B)247 kJ.
• C)2.42 MJ.
• D)3.2 MJ.

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Definitions:

Oval Window

A membrane-covered opening that connects the middle ear with the inner ear, important for transmitting sound vibrations.

Stirrup

A small bone in the middle ear, also known as the stapes, that plays a crucial role in transmitting sound vibrations to the inner ear.

Inner Ear

The inner ear is the internal part of the ear, containing the cochlea, vestibule, and semicircular canals, which are essential for hearing and balance.

Outer Ear

The external portion of the ear, including the pinna and the ear canal, which collects sound and directs it towards the middle and inner ear.