Above the Main Sequence and above the Red Giants<span>/Giants, are scattered a few stars of highest luminosities and any (from high to low) surface temperatures</span>
If the coast-to-coast distance is about 2900 miles, it will take about ...
... (2900 mi)/(186000 mi/s) ≈ 15.6 ms
for the signal to travel coast-to-coast at light speed.
_____
There are time delays due to the amplifiers and repeaters required in the path, and due to the fact that the signals don't actually travel at the speed of light in a wire.
A test of internet speed between Seattle and Washington, DC shows a round-trip time of about 87 ms when traffic is light. Modern communication channels tend to be faster than the telegraph (especially when measured in words per minute).
THEY HAVE FREEDOMS AND A PRESIDENT
Answer:
The length of the diagonal of the rectangle is approximately 26.2 units.
Explanation:
From Geometry we remember that the area of the rectangle (
), in square units, is described by this formula:
(1)
Where:
- Width, in units.
- Length, in units.
If we know that 
and 
, then the width of the rectangle is:
And the length of the diagonal (
), in units, is determined by the Pythagorean Theorem:
(2)
If we know that and , then the length of the diagonal is:
The length of the diagonal of the rectangle is approximately 26.2 units.
