Recent content by TheSoftAttack

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    Charged Particle at rest in a Solenoid (conceptual question)

    Homework Statement There is a solenoid with a magnetic field of a constant magnitude B. In this solenoid is a charged particle, initially at rest, at a certain distance r from the axis of the solenoid. After a certain amount of time, the magnetic field is instantaneously flipped in direction...
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    Charged Spheres Placed in an Electric Field, Suspended by Strings

    Ok, so I thought about it more, and came up with something which is hopefully a little closer to the actual answer (it still isn't right though :( ) I'll just reiterate the variables we have: \theta = 13^{o} m = 4*10^-3 kg g = 9.8 m/s^2 Q1 = -7*10^-8 C Q2 = 7*10^8 C r = 0.3sin13^{o} k...
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    Charged Spheres Placed in an Electric Field, Suspended by Strings

    Homework Statement Two small spheres, each of mass 4.00g, are suspended by light strings 15cm in length. A uniform electric field is applied in the x direction. The spheres have charges equal to -7*10^-8 C and +7*10^-8 C. Determine the electric field that enables the spheres to be in...