7. an engineer is using a wire that has a resistance of 1.5. this resistance is too high for the application he is designing. the wire must be exactly 2.5 cm long. what two things could he do to reduce the wire's resistance? (4 points)

Explanation:

The resistance of a wire depends on the length of the wire and the area of crossection of wire.

resistance is directly proportional to the length of the wire

and inversely proportional to the area of crossection of the wire.

So, to decrease the resistance, length should be decreased and the area of crossection should be increased.

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.

the area between the graph and the t axis