Which of the following is an opinion about friction? It always acts in the opposite direction as the motion of the object.
It stops objects on Earth from staying in motion forever.
It slows objects down too much.
It happens any time two objects are in contact.

Help me out please-
You'll get 40 points

I have been sitting on a chair for the last 3 years, now the chair is growing into me. i feel refreshed

Explanation:

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