Recent content by sillyquark
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Undergrad Inertial vs Gravitational Mass "mystery"?
In experiment two it should be clear why the light bends, or at least, I will try to make it clear. Imagine having a train car with an ice floor, and image putting some mass on the floor. When traveling at constant velocity the mass moves at constant velocity with the train, but once the train...- sillyquark
- Post #111
- Forum: Mechanics
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Undergrad Inertial vs Gravitational Mass "mystery"?
There is a thought experiment to help understand the equivalence of gravitational and inertial mass (and general relativity). Imagine you were motionless in an elevator (on Earth) and you activated a laser horizontal to you. Now imagine yourself in the same elevator, in space, infinitely far...- sillyquark
- Post #106
- Forum: Mechanics
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AM radio signal superimpostion/modulation
Great, thanks, you've helped a lot.- sillyquark
- Post #10
- Forum: Introductory Physics Homework Help
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AM radio signal superimpostion/modulation
O.K, I understand the concept but not thoroughly. Thanks for the help, this is all I should need for the answer. Genxium, what are the variables in the equation you posted?- sillyquark
- Post #8
- Forum: Introductory Physics Homework Help
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AM radio signal superimpostion/modulation
You didn't really answer my question, you just stated what the attachment displays.- sillyquark
- Post #5
- Forum: Introductory Physics Homework Help
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AM radio signal superimpostion/modulation
So, superimposing the amplitude of the carrier frequency to be similar with the audio signal's amplitude/time gives us wavelength or frequency?- sillyquark
- Post #3
- Forum: Introductory Physics Homework Help
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AM radio signal superimpostion/modulation
Homework Statement Describe how the concept of wave superimposition is used to create AM radio waves. Homework Equations The Attempt at a Solution O.K, I am not sure that I understand how this works. In the picture attached it shows the carrier frequency inside of the audio...- sillyquark
- Thread
- Radio Radio signal Signal
- Replies: 10
- Forum: Introductory Physics Homework Help
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Variable Uncertainty: Solving Equations with Empty Sets
please ignore this silly question, id delete it but I am not sure how- sillyquark
- Post #2
- Forum: Introductory Physics Homework Help
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Variable Uncertainty: Solving Equations with Empty Sets
Homework Statement Ok, I don't have a problem with the question, but what I believe to be an empty set variable is used which I have not covered in a course before. My problem is that I do not know the relevance of an empty set in part b) of the equation. Homework Equations The equation and...- sillyquark
- Thread
- Uncertainty Variable
- Replies: 1
- Forum: Introductory Physics Homework Help
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Analyzing wave interference patterns
One problem I have encountered is if the point lies on the normal line (line down the center). Would n=0? If so wouldn't my answer state that there is a difference in distance between point P and the two frequency generating sources, when clearly the line bisects them. Is this equation useless...- sillyquark
- Post #5
- Forum: Introductory Physics Homework Help
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Analyzing wave interference patterns
All that I can come up with at the moment is: Since the point P lies on the third nodal line, the absolute value of the path difference between (S1,P) and (S2,P), is equal to 2 1/2 times the wavelength. Since 2 1/2 is a multiple of 1/2, the point lies on a path of destructive interference...- sillyquark
- Post #4
- Forum: Introductory Physics Homework Help
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Analyzing wave interference patterns
I'm still a little unsure what the question wants, should I attempt to prove the statement algebraically? Should I be reasoning, and rationalize the equation in a manner similar to what you have done? The question is worth four marks so I assume that they are looking for four points of proof.- sillyquark
- Post #3
- Forum: Introductory Physics Homework Help
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Analyzing wave interference patterns
Hello, this is my first visit to PF. I have a question that I can tell isn't very difficult, but I can't seem get my head around it, maybe i just need to review my text and make an attempt tomorrow. Homework Statement Consider the point P in the following diagram. Analyze this diagram to show...- sillyquark
- Thread
- Interference Interference patterns Patterns Wave
- Replies: 4
- Forum: Introductory Physics Homework Help