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1. Magnetic field of a moving charge

Homework Statement A negative charge q = −3.20×10-6C is located at the origin and has velocity υ⃗ =(7.50×104m/s)ι^+((−4.90)×104m/s)j^. At this instant what is the magnetic field produced by this charge at the point x = 0.230 m , y = -0.300 m , z= 0? Give the x, y and x components Homework...
2. Gauss' Law vector form problem

Thanks! I'll try and do it that way as i think thats the way we're supposed to! Thank you so much for all of your help.
3. Gauss' Law vector form problem

I often get the vector part wrong - so for when x = 4m would E due to q = kq/r2 where r = √(22+42) but that would be in-between the x/y directions. Would I then resolve this is the x direction by taking Esin(θ) where θ=arctan(4/2). And to this term i finally add the field gained in part 1).
4. Gauss' Law vector form problem

So could i just find the electric field of the point charge using kq/r2 and add it to the electric field found by using Gauss law?
5. Gauss' Law vector form problem

Homework Statement (a) A spherical insulating shell of radius R = 3.00 m has its centre at the origin and carries a surface charge density σ = 3.00 nC/m2. Use Gauss’s law to find the electric field on the x axis at (i) x = 2.00m and (ii) x = 4.00 m. Give you answers in the vector form. (b) A...
6. Orbiting satellite

Thank you so much. That all makes sense now.
7. Orbiting satellite

Homework Statement Compute the speed and the period of a 240 kg satellite in an approximately circular orbit 610 km above the surface of Earth. The radius and mass of Earth are RE = 6400 km and ME = 6.0 × 1024 kg respectively. [5 marks] Suppose the satellite loses mechanical energy at the...
8. Waves and Optics

Homework Statement An unpolarised light beam is shone horizontally through a cubic tank filled with weakly scattering fluid. Can vertically polarized light leave through the sides that are parallel to the beam’s propagation direction? Homework Equations The Attempt at a Solution My thinking...