Mobile phones transmit and receive signals using electromagnetic waves, that is, wireless signal are electromagnetic waves which can travel through a vacuum, they do not need a medium or matter.
<h3>What are electromagnetic waves?</h3>
They are generated by electrical and magnetic particles moving at the same time (oscillating).
<h3>Characteristics of electromagnetic waves</h3>
- Network waves are electromagnetic waves.
- A mobile phone has coverage when it receives electromagnetic waves from at least one base station.
- They do not necessarily require a material medium for their propagation.
Therefore, we can conclude that electromagnetic waves are those that do not need a material medium to propagate and include, among others, radio, television and telephone waves.
Learn more about electromagnetic waves here: brainly.com/question/13803241
Answer:
Calcium is the most abundant element in wood ash and gives ash properties similar to agricultural lime. Ash is also a good source of potassium, phosphorus, and magnesium.
Answer:
one inch=25.4
12 meters=13.12
10 quarts=9.46
12 milliliters=0.0004
400 pounds= 181 kg
25 meters/second=82
68F=20C
Explanation:
heres the full ones
one inch=25.4
12 meters=13.1234 yards
10 quarts=9.46353
12 milliliters=0.000405768
400 pounds=181.437
25m/s=82.021f/s
68f=20C
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