Answer:
A. simple to construct and easy to repair
Explanation:
A dynamic microphone works on the principle of electromagnetic principle. A diaphragm is attached to a coil of wire which helps in producing sound. Responding to the sound waves, the coil of the wire is vibrated by the diaphragm. A magnetic field is created by the magnet which is present inside the coil of wire. The electrical signal is generated in response to the motion of the coil. The speed of the motion produces the amount of the current.
Since the construction of a dynamic microphone is easier as compared to any other microphone, John is likely to opt to build one.
Answer:
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Advanced Search. It's able to filter out things.
Answer:
The correct answer is B. The most common type of retirement plan is ERISA.
Explanation:
The dominant pension system in the United States is funded pension, which consists of retirement savings plans, governed by section 401 (k) of the Internal Revenue Code, and pension funds. Workers thus secure themselves on a private basis.
In the US pension system, there are several insurance plans:
-Social security: a federal pension instituted during the New Deal, based on the number of years worked, contributions paid and inflation. In the late 1990s, the federal government spent $ 289 billion on the mandatory retirement system.
-Pensions: Paid by large corporations and governments according to the Employee Retirement Income Security Act (ERISA).
-Individual Retirement Account (IRA), consisting of retirement savings plans and pension funds.
-The poorest pensioners receive additional federal support (OASDHI) and care (Medicare).
