lung sound in a person with pleural friction
The purpose of a pleural rub is to hear things on the inside of one's body. For example a machine that can hear the sounds inside a person's lungs when they are breathing to see if things sound normal or if there is a noisy rattling in the lungs, which would cause concern for one's health.
no because sound travels through matter so the other person wouldn't hear you
If a person is in front of a smooth surface from which a sound is reflected, the person would hear a sound that ====================================================== Allow me to add(: SEEMS TO COME FROM BEHIND THE SURFACE:>
It is difficult to determine exactly who was the first person to hear sound, as sound has been present since the beginning of time. However, the first person to scientifically study sound and its perception was likely Pythagoras, an ancient Greek philosopher and mathematician.
A person can hear an echo of sound in locations with hard and smooth surfaces that can reflect sound waves, such as caves, mountains, canyons, or buildings with high ceilings.
When you hear a person talking.
seems to come from behind the surface
The person would hear an echo or reflected sound. The time delay between the original sound and the reflected sound reaching the person's ears would be noticeable, along with some changes in the sound quality due to reflections off the smooth surface.
Sound is produced when a person speaks, creating vibrations in the air that travel as sound waves. These sound waves enter our ears and cause our eardrums to vibrate, which is then converted into electrical signals and sent to the brain. The brain interprets these signals as sound, allowing us to hear another person's voice.
The Grand Canyon.
Yes, clapping involves friction between your hands when they come together and then separate, creating the sound we hear. The rapid movement of your hands generates heat due to friction, which is why clapping for a prolonged period can cause your hands to feel warm.
The (sound) energy dissipates over distance.