Which of the following is a heterogeneous mixture? o water in a swimming pool o sugar water o a jar of mixed o nuts stainless steel

A jar of mixed nuts

Explanation:

The heterogeneous mixture include all the mixture of the solid gases and the liquid and it is not uniform in its composition. It is the mixture in which all the different elements and compounds are mixed in the dispropraite amount and then, it can easily separable.

Therefore, the correct answer is a jar of mixed nuts because it can be separated easily in the given mixture.

And all the other options are not heterogenous mixture as they do not easily separated in the mixture.

i guess it’s a and b

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.