Answer:
A. They do not require a medium to carry information.
D. They carry information very quickly.
Explanation:
The two characteristics that makes electromagnetic waves effective in communication is that they do not require a medium to carry information and they move information very quickly.
- Electromagnetic waves are produced by the vibration between electrical and magnetic fields.
- These waves are notable for being able to propagate without requiring any medium for their movement.
- They also have very fast speed.
- The speed of all electromagnetic waves is equal to that of light.
Distance of fall from rest,
without air resistance = (1/2) (gravity) (time)²
= (1/2) (9.8 m/s²) (95 sec)²
= (4.9 m/s²) (9,025 sec²)
= 44,222.5 meters .
The depth of the mine shaft is five times the height of Mt. Everest !
Wood i think could be wrong
Answer:
2.At the end of meiosis, there are four cells each with 23 chromosomes, for a total of 92 chromosomes split between the four cells.
The 2 positively charged particles would repel each other.
