The danger lies in the word spishi (copy). Simply rewriting numbers from a screen onto a notebook provides a false sense of security. Physics is a cumulative subject; if a student doesn't understand the "how" behind a 9th-grade problem, they will likely struggle with the physics requirements of the 10th and 11th grades or fail the practical sections of their exams.

It looks like you are searching for a way to "copy" or find a "GDZ" (ready-made homework answers) for the .

While "spishi po fizike" might help a student survive tomorrow's lesson, only "poni fiziku" (understand physics) will help them pass the year. The online Peryshkin guides are powerful tools, but like any tool, their value depends entirely on whether the student is using them to learn or simply to skip the effort.