I believe the answer is 40,000 Hz to 100,000 Hz
For the most part aesthetics but you could argue they reduce air turbulence in some cases which would lead to better gas mileage. On sports cars however the goal is usually down force which is not wanted on economy cars as it can actually worsen gas mileage.
I hope that answered your question.
v2 = v1 + at
60 = v1 + 4*10 v1 = 20 m/s
Answer:
C. Struggle for existence
Explanation:
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