They can.
The noise made by a kangaroo can best be described as a sort of gentle tut-tut sound. When more aggressive, the noise increases to a louder grunting, and occasional hissing. Some people have reported territorial growling.
to produce vocal sounds you have to keep singing but try not to sing to much that you strain your vocal sound to much so that you cant sing any more that happened to me
A vibrating simple pendulum does not produce any sound because it oscillates at very low frequencies.
if they are in a void no matter how much the object vibrates it won't produce any sound waves
any sound you want
yes , there were kangaroos
The fake sound you hear when you have tinnitus. Also, any device that is permanently on will produce a constant sound.
Sound energy is wave of different vibrations in any kind of object. You cant see sound energy but sometimes you can hear sound.
No. Kangaroos are herbivores, so they do not have prey.
true
The vacuum does not produce sound waves nor, can sound waves travel through them. A sound wave needs something to travel on/through, such as air. A vacuum doesn't contain any particles required for sound waves.
True.
if they are in a void no matter how much the object vibrates it won't produce any sound waves