Plane electromagnetic waves, the intensity of which is equal to 12 W / m2, is distributed in a vacuum. The oscillation frequency of wave 2 * 10 ^ 16 Hz. To determine the electromagnetic wave equation with numerical coefficients, initial conditions are randomly selected. In solving the problem, note that the mean square sine (or cosine) for the period is 0.5.
Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
If you have any questions to address, please. I´ll try to help.
04.12.2015 14:08:52
Всё отлично.
Решение на "ура".
Всё правильно, обращайтесь не пожалеете!
29.10.2015 20:10:53
подробно решено, всё как полагается 5+