I Question Details
A magnet has a postive charge and a negative charge.
You have two magnets one A and one B. You have A
with the + side facing B - side. The polarity of magnet B
changes to +. What will happen to the 2 magnets.

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada

u

explanation: