Question

Guyz can you help me again? thanks in advance...

only Activity 1A: Propagating sound 1-2​

Answer 1

in my guess:

when ur ear is in table u hear the sound and when ur ear is not in table u don't hear the sound...

But I am not sure

Step-by-step explanation:

because sound through solid....

Answer 2

I heard the pencil tap when my ear was at the end of the table top, But when my ear is above the other end. The sound is lower.

Step-by-step explanation:

You heard the pencil tap at the first try because you can hear the vibration of the table when your friend tapped the table. But when you put your ear farther you didn't because the vibration can't travel through air.