Answer:
The vibrations from sound waves cause our ears to send signals to our brains to create sound. The speed of sound waves will determine the sound's pitch, or how high or low something sounds. Sound waves are important because they allow us to hear important messages and emergency signals to protect ourselves.
Explanation:
I hope this helps :)
It must be either speeding up, or slowing down, or turning. There are no other possibilities.
Answer:
c is correct
Explanation:
There are two equal forces on each sides of the rope. The greater opposing sides pull, the greater the magnitude of tension force along the rope.
