Answer:
500 Pa
Explanation:
Convert given units to SI:
100 dyne = 0.001 N
0.02 cm² = 2×10⁻⁶ m²
Pressure = force / area
P = 0.001 N / (2×10⁻⁶ m²)
P = 500 Pa
the answer is b temperature
Sound moves faster in warmer air than colder air the way bends away from the warm air and back towards of air.
5000 ns
hope this helps
It is actually B. Promoter 2.
Your welcome
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