The Kinetic energy formula will be used:
Ek= 1/2mv^2
Ek= 1/2x72x79^2
Ek= 224,676 Joules
The sound waves pass through the door and will then go further from the space near the door making the sound hear outside the door also.
<u>Explanation:</u>
Waves can twist around corners in view of an impact called diffraction. The sum that a wave will twist around a corner as a result of diffraction is about equivalent to its frequency. So it is a lot simpler to see the bowing of the sound waves, since it is around a million times greater than the bowing of the light waves.
As the waves pass through the door, they bend and travel into the space near the door. Because they spread out into the space beyond the door, a person near the doorway can hear sounds from inside the room.
Relative dating<span> and absolute </span>dating<span> are used to determine age of fossils and geologic features, but with </span>different<span> methods. </span>Relative dating<span> uses observation of location within rock layers, while absolute </span>dating<span> uses data from the decay of radioactive substances within an object.</span>