Acceleration is F/M so the answer would be 12m/s^2
Answer:
As the sound approaches, it gets louder (simply because you're closer to the source), and has a higher pitch. Then, as it passes, the sound suddenly dips down, and as it drives away you hear a lower pitch, plus a decreasing volume as the engine gets farther and farther away.
Explanation:
68 miles per hour 1.1333 miles per minute
Radiocarbon saying assume the half life for radioistopes change over time. The half life of C -14 is 5730 years