Magnetic field lines curve out from one pole and return to the same pole. select the best answer from the choices provided t f

Magnetic field lines always forms closed loop in such a way that it originates from North pole and then terminates back into the South pole

Inside the magnet we will draw the field lines from south pole to north pole

So it is not possible that magnetic field lines originates from north pole and again terminates at the same pole

So this is

FALSE

the answer is a. hope this .

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.