Question

Sunil is standing between two
walls. The wall closest to him is at
a distance of 860 m. If he shouts,
he hears the first echo after 4 s and
another after another 2 seconds.
What is the velocity of sound in
air?
What is the distance between the
two walls?​

Answer 1

Answer:

hope it helps you

Step-by-step explanation:

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Answer 2

Answer:

ello,ᴀᴋᴋᴜ

ᴄʜᴇᴄᴋ ᴛʜᴇ ᴀᴛᴛᴀᴄʜᴍᴇɴᴛ

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘғᴜʟ

@ɪᴛᴢ_ɪʀᴢᴇᴛᴇx༆