The answer is D. A universal motor uses brushes made out of carbon. The softness of the carbon allows easy direct radial contact with the communicator without any damage. It also allows easy reversal of rotor direction. A carbon brush has a flexible copper jumper lead attached.
Responses may vary but should include some or all of the following information:
The Soviet Union broke up into a number of independent, noncommunist states in 1991. The largest former Soviet state is Russia. Germany was reunited as East Germany and was no longer separated from West Germany by the Berlin wall. As a result of these changes, Eastern Europe began to transition from communism to democracy. As the iron rule of the former Soviet state was lifted, longstanding ethnic conflicts erupted in some formerly communist states.
Answer:
One example would be fans of the same team, such as the Patriots. Patriot fans have a collective identity of rooting for and supporting that team.