Usually when the temperature is increased what will happen to the rate of dissolving

As temperature increases the rate of dissolving increases.

Explanation:

Generally, temperature plays a major role to the rate of dissolving .The solubility of a particular substance increases as temperature increases. Temperature increase is accompanied by higher kinetic energy. The high kinetic energy acquired by the substance been dissolve allows it to collides and move rapidly thereby easily breaking the bonds holding the particles together. When this particles are dissociated , the rate of dissolving of this individual particles becomes easy.

The logic behind this is that the dissolved substance loses the strength to hold the particles together . The bond holding the particles together are weakened by the high kinetic energy or temperature increase . The individual particles will be left alone and invariably the rate of dissolving will increase.

c

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.