Once this initial energy is added, the wave travels through the medium until all its energy is transferred. In contrast, electromagnetic waves require no medium, but can still travel through one.
Answer:
Oral cavity
Explanation:
its first organ from which food enter
Answer:
i believe the answer would be 4 mph
Explanation:
the formula for speed is distance/time so 100/25 = 4. therefore your answer would be 4 mph. hope this helps:)
