A pulley ,it the same concept is used to raise an elevator
When the velocity is increasing the acceleration increases too
A) seismic waves
b) sound waves
sound waves are traveling vibrations of particles in media (air, water, metal, etc) so they can’t travel through empty space (vacuums) because there are no atoms or molecules to vibrate.
seismic waves are mechanical waves and require a medium for propagation, hence, they cannot travel through a vacuum.
hope this helps :)
<span>C) It does not change. At the point where the phase of a substance changes, there is no temperature change but only the phase change. After this, the temperature then goes up or down depending on the type of phase change occurring. </span>
