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Can someone help me with this please!!!
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Can someone help me with this please!!!

Can someone help me with this please!!!-example-1
User Sabi
by
8.2k points

1 Answer

6 votes

Answer:

B. 10 m

Step-by-step explanation:

f = v/λ = (20 m/s)λ / (5 m) = 4 Hz original frequency

1/2(4 Hz) = 2 Hz half the original frequency

(20 m/s) / λ = 2 Hz

λ = (20 m/s) / (2 Hz) = 10 m

The second wavelength would increase to 10 m

User MagicKat
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7.6k points
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