Select the correct answer. What happens to sound waves after they are received by our ears? A. The longitudinal compression waves are transmitted directly to the brain.

B. The vibrational energy of the sound waves is converted into a mix of electric and mechanical signals and sent to the brain through two separate pathways.

C. The vibrational energy of the waves is converted into electrical signals and sent to the brain.

D. The longitudinal compression waves are converted into electromagnetic waves and sent to the brain.

0.19 m/s and 0.45 m/s

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

at right angles to each other