Recent content by Shostakovich
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Find Null Geodesics with affine parameter
Hello, please attempt to re-upload the images, currently the links appear to be broken and may very well be the reason no one can help.- Shostakovich
- Post #3
- Forum: Calculus and Beyond Homework Help
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What is the distance at which an antenna can receive signal?
For all of those in the future who come seeking a solution, this is it. keep going from where i left off, plug and chug by setting energy flux of the transmitter (P_tran / 2 Pi d^2 ) equal to (E_0^2 / 2 mu_0 c). Then solve for d!- Shostakovich
- Post #16
- Forum: Introductory Physics Homework Help
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What is the distance at which an antenna can receive signal?
So, are you saying dE/dx = -κ* Eo is incorrect?- Shostakovich
- Post #15
- Forum: Introductory Physics Homework Help
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What is the distance at which an antenna can receive signal?
The units were stupid on my part! The problem is still knowing what E_0 is though.- Shostakovich
- Post #13
- Forum: Introductory Physics Homework Help
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What is the distance at which an antenna can receive signal?
Technically mu_0 * c gives you 377 Ohms, i thought wolfram alpha would deal with it, but it did not. I see what i did, I didn't square V/m. Ok, back to business then, is my 4th step correct, or no?- Shostakovich
- Post #11
- Forum: Introductory Physics Homework Help
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What is the distance at which an antenna can receive signal?
Here is the wolfram alpha interpretation,- Shostakovich
- Post #9
- Forum: Introductory Physics Homework Help
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What is the distance at which an antenna can receive signal?
Sorry, that came out a lot less clear than I wanted. If you sill can't read it I'll upload it to imgur or drop box or something.- Shostakovich
- Post #8
- Forum: Introductory Physics Homework Help
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What is the distance at which an antenna can receive signal?
Is my 4th step correct, before I continue? Hopefully everything is clearer now though!- Shostakovich
- Post #7
- Forum: Introductory Physics Homework Help
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What is the distance at which an antenna can receive signal?
Sorry about it not being clear. But I'm obviously lost then! That's what I mean, I don't know WHY the units are wrong, I just know that when I plugged them into Wolfram Alpha to double check, they were very wrong! Where would you recommend I start? Did I start on the right path and veer off...- Shostakovich
- Post #5
- Forum: Introductory Physics Homework Help
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What is the distance at which an antenna can receive signal?
.5 gives the average of the sinusoidal function. E_0 = (V*lambda)/(Pi^2*r_ant^2) (according the my calculation of using the wave equation to derivate E_0). The size of the antenna is used in E_0, because you're calculating the induced voltage through the loop. The units are consistent...- Shostakovich
- Post #3
- Forum: Introductory Physics Homework Help
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What is the distance at which an antenna can receive signal?
Homework Statement Assume that the power radiated by the television transmitter uniformly fills the upper hemisphere. A UHF television with a single-turn circular loop antenna of radius 8 cm requires a maximum induced voltage above 24 mV for operation. The speed of light is 2.99792 × 108 m/s...- Shostakovich
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- Antenna Electromagnetism Signal Waves
- Replies: 15
- Forum: Introductory Physics Homework Help
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Finding the E due to a non-uniform surface charge distribution in 3D
As you probably well know, the Electric field due to an infinite sheet is σ/(2ε(naught)). But this gives something about 2.43 times smaller than what was given. Does this proportion have anything to do with how the field distributes itself?- Shostakovich
- Post #3
- Forum: Introductory Physics Homework Help
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Finding the E due to a non-uniform surface charge distribution in 3D
Homework Statement Here is the question, which itself is rather confusing. A nonuniform surface charge lies in the yz plane. At the origin, the surface charge den- sity is 3.5 μC/m^2. Other charged objects are present as well. Just to the right of the origin, the electric field has only an x...- Shostakovich
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- 3d Charge Charge distribution Distribution Surface
- Replies: 3
- Forum: Introductory Physics Homework Help