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LexiyLexiy2年前
https://s9.postimg.org/lduiap4zj/received_10215681152122264.jpg

can someone please help me? I don't quite understand this.
クリク数:3,345 • マイリスト数:0コメント数:16

コメント16

Love the fact that MFC now stands for My Friends Science.
2年前
...off topic, but what course are you taking?

(i want to make sure I'll never have to cross paths with this bullshit in my lifetime)
2年前
My answer is “I haven’t got a clue either” but...after a bit of digging I’d say I would try figuring it out via Coulomb’s constant. I don’t know for sure if the angles are a red herring but I am suspicious. This probably is no help but I thought I’d give it a stab.
2年前
Sorry, i don't notice that the problem don't include the mass. For calculate the mass, you must protect the force electric and gravitational. Like the system is in equilibrium, the forces are equal and you can calculate the mass.
http://i68.tinypic.com/10h16qh.jpg
2年前
pon2年前#30899971There are 3 forces acting on the top charge. F_electric, F_gravitational, F_tension.Espi2年前#30900000There are three forces, electricity, tension and gravitation.
I believe he's going to need some more trigonometry to determine the gravitational force, as the mass of the charge wasn't disclosed in the problem.
2年前
Hello again maths >.>
2年前
darkfader ⱠØⱠł₵Ø₦
inb4, a question about strange attractors.
2年前
WanderingWastrel2年前#30899968Well, he is trying to figure out the answer.

Omg, best joke ever. You made my day xD
2年前
The answer is 42......
2年前
There are three forces, electricity, tension and gravitation.
To solve this problem, you choose the coordinate system with x in the direction of Tension and then you must select the forces in the x direction. You just have to multiply by the cosine and the sine of the angles.

T = P * cos (24º) + Fe * cos (12º)
http://i65.tinypic.com/10xu4c1.jpg
2年前
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