A compression is where the particles in the air are closer together, so where those black lines are closer together.
A rarefaction is the opposite, where they're spread out.
The wavelength is the distance between two compressions or rarefactions (i.e. two peaks or troughs on a graph), therefore thats the horizontal arrows.
The amplitude is the distance from the centre of the wave to the peak or trough, so that is the vertical distance on the diagram.
Every mass is attracted to every other mass with a force that is proportional
to the product of both masses and inversely proportional to the square of the
distance between their centers of mass. The forces act along the line between
their centers of mass.
Imagine that the two atoms are playing tug of war with the electron, but one is pulling with a stronger force than the other. This inequality results in the majority of the rope being pulled toward the stronger atom. In the bond, the electron is pulled closer to the stronger atom too. This results in each side having a partial charge, one being more negative than the other.
Answer:
According to the federal aviation regulation for tow pilot, there are three regulatory requirements to be met.
Explanation:
1. The Pilot must hold at least a private pilot certificate with a category rating for powered aircraft.
2. The Pilot must have logged at least 100 hours of pilot-in-command time in the aircraft category.
3. The Pilot must have a logbook endorsed by an authorized instructor who certifies that the person has received ground and flight training in gliders and is proficient in the following;
a. Procedures and techniques of safe towing of gliders.
b. Signal use.
c. Bank maximum angles.
d. Emergency procedures.
