Law for heat exchange and evaporation..
I wonder if there is any law for heat exchange. I have learnt that heat exchange between systems occurs when the temperature of respective systems differ. But in case of evaporation, the process...
View ArticleKinetic Energy of Pure Charge
Consider a hypothetical particle with no mass (like a neutrino or photon, in that sense), but with pure charge. Consider this pure charge being accelerated in an electric field. Is there any meaning in...
View ArticleCoriolis movie of draining pool?
So we all know the Coriolis effect isn't demonstrated in a bathtub or toilet. Are there any videos online of the size of pool needed to demonstrate it? I saw one in grad school--black and white from...
View ArticleInterference And Differaction
How in microscope there is a phenomena of differaction, and in case of telescope there is interference of light happens ?
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Question in current equation in small loop.
This is part of the derivation of vector magnetic potential of a small current loop center at origin and on xy plane. The current is stated to assumed to be constant along the loop. Attach is the...
View ArticleWhat does the word "action" mean in quantum physics?
Hi everybody, I was reading about the application range of quantum mechanics. I found the effects of quantum mechanics are negligible where the action is on the order of the Planck constant. But, What...
View ArticleMeasurement uncertainty and error
Suppose we have [itex]x[/itex] plates of wood of thickness [itex] (0.0150 \pm 0.0002) \text{ m}[/itex] and we wish to stack them into a pile of height [itex] (1.000 \pm 0.001) \text{ m}[/itex]. The...
View ArticleMagnetic bivector.
What would happen if you take the wedge of the magnetic field and the velocity of a charged particle, you get the force or the current correct? So the equation looks like: ## \mathbf{J} = \mathbf{v}...
View ArticleApplications of electromagnetic radiation
Im searching for a book about the applications of electromagnetic radiation. A more specific topic Im interested in is radio antennas but Im searching for a book concerning more than 3 different...
View ArticleNon Ideal plane balancing
Hi all, suppose that i have three forces exerting to support a flat piece of uniform object.(Imagine a 3 cylinders supporting an object in a triangular way. In ideal situation, all 3 forces must exert...
View ArticleWhat's affecting the friction?
I am quite confused when my lecturer told me that the mass of an object doesn't affect the static friction. F = μN , the N suppose to be the Normal force right? If i have an object on an horizon...
View ArticleFrequency magnetics converting to tesla?
Hello, For the last 2 months I've been trying to find a relation between a frequency magnetic field and the amount of tesla a coil has to induce. When I found this forum and I thought if somebody can...
View ArticleSystem model of doppler shifted laser
Hello all, I am trying to model a received laser signal, x(t), reflected off a moving target. I am currently trying to model for both frequency change due to Doppler shifting as well as a time-varying...
View ArticleQuestion "Fluid Mechanics(Robert Granger)" fluid Velocity comp.
Chapter 4. eq. 4.28- 4.30 u = u0 + (x - x0)(du/dx) + (y - y0)(du/dy) + (z - z0)(du/dz) v= ... w = ... Then with out any significance explanation these equation take a form of eq 4.31 - 4.33 u = u0 +...
View ArticlePressure of a solid body
Hi. Consider a solid body placed in vacuum. How much is its pressure? Can we describe this body using thermodynamics if its pressure is zero?
View ArticleQuestion: Why does AC current change through a transformer?
Hello physics friends! I have a question about AC current I hope you can help me understand. So I know that putting AC through a transformer will raise or lower the voltage, but because power has to be...
View ArticleMotion of earth through space
Hello, Suppose we pass a horizontal plane through the earths equator. Over a period of a year how is the variation of the earth up and down the plane affected by the moon's motion and other planet's at...
View ArticleEuler Angle transformation, help!
I'm doing a research project currently and basically what I have is a camera measuring a probe. I have designed the camera to give the orientation of the probe using euler angles in the camera's frame...
View ArticleSecond Law analysis for Radiative Heat Transfer
Hi people, I'm currently working on a project regarding entropy generation by (emissive only) radiative heat transfer from heat sinks. But I'm unable to find a proper treatment regarding Second Law...
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