What makes electricity? Is it the heat or friction or? doesn't higher voltage reduce resistance? why is it higher if voltage "pushes" the electrons and resistance "stops" the electrons"?

Why is it the same resistance before the first resistance and before the last resistance in the same closed circuit??

If voltage is the speed of electrons passing and you measure the speed, how do you measure current? Because doesn't the length of the conductor like decides how many electrons there are? Because the electrons enters AND leaves the conductor

the answer would be c

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

i think its d if wrong im sorry