Answer:
a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
Explanation:
i don't have one
A sphere is a perfect 3 demention closed surface where every point is an equal distance from the center. And a hemisphere is half of a sphere with one flat side.
simple harmonic motion is a special type of periodic motion or oscillation where the restoring force is directly proportional to the displacement and acts in the direction opposite to that of displacement.
Answer:
Vibrations are sent through the air to your ears.
Explanation:
Sound is a form of energy that is transmitted in compression and rare factions. Sound is a mechanical wave. All mechanical waves require a material medium for propagation.
The material medium for the propagation of sound is air. When the sound is produced by the speakers, the molecules of air are set into vibration and this vibration carries the sound from the speaker to your ears.