Question

(iv)
B
O is the centre of
C the circle and
OA = 7 cm
7
А​

Answer 1

Answer:

how does sound travel material medium??

Step-by-step explanation:

Sound is a type of energy made by vibrations. These vibrations create sound waves which move through mediums such as air, water and wood. When an object vibrates, it causes movement in the particles of the medium. This movement is called sound waves, and it keeps going until the particles run out of energy.

hope it helps