TSny's latest activity
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Thank you everybody for your help. It all begins to make sense now. Griffiths even puts the equation ##\nabla \cdot (\frac{\hat... -
TSny reacted to scottdave's post in the thread PhysicsForums mentioned on The Action Lab YouTube video with
Like.
I came across this YouTube Short from The Action Lab. I thought it was pretty cool that he searched Reddit and PhysicsForums when... -
Hello everyone, It's been a long time since I posted anything here on PF. After graduating in 2017 with a bachelors degree in EE, I...
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TSny replied to the thread Thermodynamics of capacitor filled with a linear ideal gas dielectric.Here, you are dealing only with the "electrical" free energy ##F_{\rm elec}## associated with the work done by the battery. In the term...
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TSny reacted to berkeman's post in the thread Simple kinematics problem — falling from a geostationary satellite with Like.
Welcome to PF. That's a trick question. If you release a marble from a geostationary satellite, it just continues in the same orbit as...
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TSny replied to the thread Newton's laws and inclined plane with friction.See post #5. When an object is in contact with a flat surface, the friction force that the surface exerts on the object is parallel to...
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TSny reacted to kuruman's post in the thread Field at a point on the axis of a ring with variable charge density with Like.
Sure, I agree that the drawing has mislabeled the positive and negative arcs on the ring, but how does that affect the integrals' setup...
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TSny replied to the thread Field at a point on the axis of a ring with variable charge density.Refer to: Note that ##\phi## is measured from the ##z##-axis. So, all elements of the ring with positive ##z## coordinate should be...
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TSny reacted to Vincf's post in the thread Paradox in Induced Dipole Forces: Does it violate Newton's Third Law? with Like.
Your mistake comes from differentiating the dipole moment as well, whereas it must be kept constant during the differentiation. To...
