Answer: Over the past 30 years the U.S. auto industry has faced multiple existential ... of the geography of the industry, including the role of what are termed ... Today, there are a number of plants that can produce as many as six distinct ... is shifting from the upper Midwest to the entire central corridor of the country.
Explanation:
Silicon is a chemical element with the symbol Si and atomic number 14.
Answer:
a quarter of the former gravitational force.
Explanation:
This change in gravitational force is not instantaneous. To understand this one must know about gravitational waves. The relation between gravity and gravitational wave is analogous to the relationship between EM waves and EM force. Gravitational wave as EM waves travel with speed of light. Nothing can exceed this limit. i.e.- 3,00,000 km/sec.
Even light takes approx. 8 mins to reach Earth and so does gravity (or gravitational waves). One famous question based on this is if our sun vanished instantly would it affect Earth immediately like thrown out of orbit or there would be no light !? The answer will be that people of Earth wouldn't know that our sun has vanished until 8 minutes have passed. Then it may be thrown out due to absence of gravity but in those 8 min we won't feel any difference.
Now coming to your question if the distance is doubled instantly by some mean (mostly impossible and theoretical) then the change in light or gravity will take double the time. So the new gravitational force or the brightness change will be felt by us after 16 min approx.
The answer to your question is BOTH A AND B
