The loudness of sound refer to how loud or soft a sound seems to a listener
Answer:
A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. ... Forces only exist as a result of an interaction.
Answer A: When their separation increases.
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Answer:
Explanation:
The explanation is given in the attached document.