📅 NSB 2011 Set 4🎓 HS🔄 Round 5#️⃣ Question 16❓ Toss-Up✍️ Short Answer
Lynne is standing still on a sidewalk. What is the name of the concept which describes why the siren of an approaching fire truck has a higher frequency than that of a fire truck that is stopped?
✔️Answer:DOPPLER SHIFT
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