A. Electrons in a circuit are both repelled from the negative side of the battery and attracted to the positive side of the battery B. When one electron in the wire is moved, the force of repulsion pushes its neighboring electron down the wire
C. A chemical reaction occurs at the negative terminal of the battery that results in the production of electrons.
D. Increasing the number of protons in the negative side would increase the voltage

Answer and explanation please!!

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

wavelegth as in spectrum red oygbiv

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.