# physics

posted by .

Two identical small spheres of mass 2.0g are fastened to the ends of an insulating thread of length 0.60m The spheres are suspended by a hook in the ceiling from the centre of the thread. The spheres are given identical electric charges and hang in static equilibrium, with an angle of 30.0 degrees between the string halves. Calculate the magnitude of the charge on each sphere.

I've tried to solve this many different way but i cant figure it out.

so far i got Fg=mg which is 0.01962 and then i used tan 15= 0/0.01962 which equals 0.0053 but im stuck from there

## Similar Questions

1. ### Physics Help

Hey, ok so I am supposed to be helping my cousin this with this physics problem, and this is the only one that has ever stumped me! Neutral metal spheres A and B each of mass 0.2 kg hang from insulating wires that are 4.0 m long and …
2. ### Physics Repost

Hey, ok so I am supposed to be helping my cousin this with this physics problem, and this is the only one that has ever stumped me! Neutral metal spheres A and B each of mass 0.2 kg hang from insulating wires that are 4.0 m long and …
3. ### Physics

1. The electrostatic force of attraction between two small spheres that are 1.0 meter apart is F. If the distance between the spheres is decreased to 0.5 meter, the electrostatic force will be a) F/2 b) 2f c) F/4 d) 4F I know when …
4. ### Physics - charge on sphere

Two 2.0g spheres are attached to each end of a silk thread 1.20m long. The spheres are given identical charges and the midpoint of the thread is then suspended from a point on the ceiling. The spheres come to rest in equilibrium, with …
5. ### Physics - Charge on sphere (check + help)

Two 2.0g spheres are attached to each end of a silk thread 1.20m long. The spheres are given identical charges and the midpoint of the thread is then suspended from a point on the ceiling. The spheres come to rest in equilibrium, with …
6. ### physics

Two 5.0 g spheres are suspended from a long thread and separated by a distance of 140mm. The spheres repel after being charged to +86nC. Find the angle
7. ### physics

Two small, identical metal spheres contain excess charges of -10.0 x 10^-6 C and 6.0 x 10^-6 C, respectively. The spheres are mounted on insulated stands and placed 0.40 m apart. Determine the magnitude and direction of the force between …
8. ### physics

two similar charged small spheres each having a charge of 0.044 micro coulombs are suspended from a point by a thread of length 15 cm each. at equilibrium the angle is 5 degree. what is the mass of each sphere ?
9. ### Physics

Two identical small spheres of mass 2.0g are fastened to the ends of an insulating thread of length 0.60m The spheres are suspended by a hook in the ceiling from the centre of the thread. The spheres are given identical electric charges …
10. ### physics

The two small spheres each with mass m= 25g are hung by silk threads length L=.65m from a common point. When the spheres are given positive charge such that q1=2q2, each thread hangs stationary at theta=15 degrees from the vertical. …

More Similar Questions