PLZ HELP ME

What do you think would happen to the strength of the electromagnet if the number of coils were decreased?

The strength of the electromagnet will decrease

Explanation:

An electromagnet is a defined as a magnetic field that is powered by electric current(electricity). It is made by wrapping wire coils around a soft Iron core, the wire cools produces the electric current.

The electromagnet strength is increased according to the increase in the number of wire wound around the soft iron core or when the current is increased. The strength of the electromagnet decreases when when the number of wire or turns wound around the soft iron core or current is decreased.

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.