<u>Answer</u>:
Cell phones contain rechargeable batteries that transform chemical energy into electrical energy. When using your cell phone, electrical energy is first transformed into <u>Electromagnetic waves </u>that are transmitted through the air.
<u>Explanation</u>:
When chemical energy is converted into electrical energy in cell phones, then this electrical energy firstly transformed or converted into electromagnetic waves which travels through air. Then this electromagnetic wave is converted into sound energy due to which users are able to listen audio, music, movies etc on their mobile phones.
The electrochemical energy that stored in a cell is removed as electrical energy in the process of discharging. There are so many other thermal and electrochemical processes taking place at the same time.
Answer:
Mandated boundaries
Explanation:
Extremely imposed boundaries of conduct, such as laws, rules, regulations, and other requirements are known as Mandated boundaries.
These rules and regulations are usually held in very high regards and very compulsory to obey. Disobeying Mandated boundaries usually attract a very stiff penalty.
I’m pretty sure it’s the first one
The answer to the question above: What law required local phone companies to allow competitors into the market is letter A. It is the Telecommunications Act of 1996 which amended the Communications Act of 1934 which the goal was to let any communications company enter the business.
