The value of the underlined 8 is, hundred billion's. Hope this helped!
Are you referring to the fact that water is a compound while hydrogen is an element? If I'm wrong just comment and clarify and I can edit it, I don't even know what kind of unit you're in. :)
Equal to 50
law of reflection: angle of incidence equals angle of reflection
The sun's energy is refferd to solor energy
Answer:
33.83W/m²
Explanation:
The intensity of the speake at the surface is
I = P/A
I = 2.03W / 0.06m²
I = 33.83W/m²
