Select the correct text in the passage.
Which sentences describe the cyclone device?
A cyclone device accumulates fine particulates from the air by making a dirty air stream flow in a spiral path inside a cylindrical chamber. It
consists of several long and narrow fabric filter bags suspended upside down in a large enclosure. When dirty alr enters the chamber, the
larger particulates strike the chamber wall and fall into a conical dust hopper at the bottom. Fans blow dirt. filled air upward from the bottom of
the enclosure, trapping dirt particles inside the filter bags and releasing clean air from the top. The top of the chamber has an outlet that lets
out cleaned alr.
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search it up!

explanation:

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.