The ultimate source of energies for fossil fuels, solar cells and windmills is the solar energy.
The sun is the ultimate source of energy for our planet. It is an alternative energy resource that cause no pollution and is <span>environment friendly. </span>
Answer:A language is a structured system of communication. Language, in a broader sense, is the method of communication that involves the use of – particularly human – languages. The scientific study of language is called linguistics
Explanation:
Answer:
For the calculation of I = Erms2 / (cμ0), I get
I = (91.5 / √2)2 / [(2.99 x 108) (1.26 x 10-6)] = 11.07 W/m2
<u>
Intensity = 11.07 w/m^2</u>
t = 17.1 s
A = 0.0229 m2
U = energy = IAt = (11.07) (0.0229) (17.1) J = 4.34 J
<u>Energy = 4.34 Joules</u>
Did we invent math or did we discover it?