What is the primary source of a sound? A refraction A medium to carry the signal A vibration A frequency

Question

What is the primary source of a sound?
A refraction
A medium to carry the signal
A vibration
A frequency

in progress 0
Thanh Hà 4 years 2021-08-03T17:41:21+00:00 1 Answers 9 views 0

Answers ( )

  1. Thunguyet
    0
    2021-08-03T17:43:16+00:00
    Reply

    Answer:

    A vibration is the primary source of a sound.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )