-- The object either left or crossed the starting line exactly at time=0 .
-- The object has been traveling at constant speed for all time that
we know about.
180 - (40 * 2) = 100°
So the answer is (D) 100°
Hope this helps! :)
Answer:
The total energy is 
Explanation:
From the question we are told that
The Poynting vector (energy flux ) is 
The length of the rectangle is 
The width of the rectangle is
The time taken is 
The total electromagnetic energy falls on the area is mathematically represented as

Where A is the area of the rectangle which is mathematically represented as

substituting values


substituting values

