A point source emits electromagnetic energy at a rate of 100 W. The intensity 10 m from the source is

Explanation:

Given that,

Power of electromagnetic energy, P = 100 W

We need to find the intensity at a distance of 10 m from the source. Intensity is equal to the power per unit area. So,

So, the intensity at a distance of 10 m is

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table