I have to gain a real deep understanding of everything I'm learning in university and luckily for me I don't have to work to survive so I can put all day every day into learning which is what I like to do because I love learning about scientific fields. How do other people that aren't as...
Is the formula for single slit diffraction Dsin\theta = m\lambda identical to the double slit diffraction besides m being minima rather than maxima? More specifically will m + 1/2 tell me the angles between maxima?
Thanks a lot. That squeezing the balloon example cleared up the confusion I had about all this. In college we learned that work is "force over a distance". This made no sense to me but thinking of it as the force you have to work against to move a mass a distance it makes sense to me. I'm...
In the equation \Delta U = \Delta Q + \Delta W I'm trying to conceptualize what this means but I don't really know what's meant by heat and work. Would thinking of it as the change in heat results from the work done to or by the system while the work could be anything from beaming x-rays through...
Dead true. I've been learning magnetism lately and since its hard to visualize I find it pretty hard but using the equations to solve problems I started gaining a mathematical understanding too which reinforced the hazy understanding I had of the concepts. Practicing also seems to permanently...
I have a passion for pretty much all scientific subjects and I gladly spend all day accumulating knowledge relating to it but I still find the exams in university pretty hard. I wonder how people that don't have a passion for these subjects manage to pass tests. I can't just go to lectures and...
I'm having a bit of trouble understanding what exactly the lorentz force is. In this diagram here
[PLAIN]http://img7.imageshack.us/img7/7065/helicinbfld.jpg
I know its the force that's keeping the proton in that helicoidal trajectory so I can see its perpendicular to the direction of the...
If a proton flies into a magnetic field I've seen the trajectory but I'm not sure about the directions of all the forces involved. In this picture
[PLAIN]http://img7.imageshack.us/img7/7065/helicinbfld.jpg
I drew in a red, blue and yellow arrow. I assume the proton is moving in the direction...
Thanks for the analogy that cleared up a lot of the confusion I had about \phi = \frac{q}{\epsilon_0}. As long as the thing is enclosed the amount of flux lines hitting the total surface area will be equal but the bigger the balloon the smaller the flux will be for small segments of the balloons...
Also I'm having serious trouble understanding the difference between electric field magnitude and electric flux. Both are defined by the density of field lines per area aren't they?
mooglue: So this surface function for the surface would take into account the angle between the field lines and the normal of the surface through the whole surface? This is the first physics application of integration I've run into so far. :smile:
Is Gauss's law then just the fact that the...
I know that electric flux is defined as the number of electric field lines passing through an area but what kinda area are we talking about. Does it have to be perpendicular to the field lines like this
or could it be at an angle like this
does it have to be a flat area on 1 plane like the...
In my book for all these equilibria questions involving ice tables when I end up with Ka = \frac{(x)(x)}{initial amount - x} they always say that if the Ka is tiny compared to the initial amounts then we can assume x will be too and we can omit as many x's as we like from this equation. This...
I'm having trouble understanding these kinda questions. I'm assuming this kinda thing applies to all types of force when there's 3 objects exerting the force so its fairly important to know. Let's say I have 3 charges of 11x10-6C that make up an equilateral triangle...
On a test in college I was asked to find the current flowing through a resistor and lightbulb on a simple circuit with a battery, resistor and lightbulb. I was told the resistance of the resistor and was given a voltmeter so I measured the voltage across each of the components but when it came...