See image below for detailed explanation
Answer:
i think its B the molecules are moving more rapidly
Explanation:
<span>Frequency of a sound wave is called the pitch. Higher frequencies have a higher pitch and lower frequencies have the opposite. When an ambulance travels by a listener, the frequencies are oscillating rapidly and causing the shrill, loud sounds that emanate from the sirens.</span>
I think the amount of force will decrease and the amount of work will increase
