An old lamp contains a three-way liehthulb that can act as a 20 w, 55 w or 75 w light source when connected to 120 v. such a bulb contains just two resistive filaments (r4,rg). the switch on the lamp changes the circuit so the resistive filaments are connected to the 120v either individually or in parallel a) sketch the circuit(s) required to create this lightbulb-switch circuit, and describe how the connections to the two filaments are made to give each of the three wattages b) what is the resistance of each filament? /2 points 13. current from a battery with an unknown voltage passes through a resistor with an unknown resistance r. resulting in a current of 0.55 a. next, a second resistor with a resistance of r2= 18 is placed in series with r1 and the battery, resulting in a 0.25 a current. sketch the circuits and calculate r

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explanation:

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.