well, in the particular instance of the problem i have, rho is in reference to volumetric charge density, z is the distance from the center of the plate. i have seen it used in either a radius or linear capacity. and I know it's dimensionally C/m^? since I've seen the m with powers of 4 or 5...
an "infinite" sheet with a thickness has a uniform density charge. however, my teacher gave it in rho=az^2. I know what rho is, and I know what z is. What is 'a'? He's used it in an example or two, but never thought to ask what it means and if it's consistent for all distances of the...
I totally understand your reply and already knew that. What I'm figuring my problem is, is since it's not in equilibrium (I know I have to figure it's lowest height before it starts on an upswing before hitting this "infinite" sheet), I don't think I can use F_electric + F_gravity = ma. I know...
The answer sheet the professor provided lists the acceleration to be 4.2 m/s.
So am I coming up with the wrong equation to use? I tried qE+a=ma but the problem is I know that this is not in equalibrium so I don't know how a FBD can help me figure this out in this instance.
I didn't use my...
Pretty much, an object is moving at a certain velocity towards an "infinite" sheet with uniform charge density of sigma=4.4 nC/m^2. The object has a mass of m=62 ug and a charge of q=3.5 nC. It also has a velocity given in a vector v=(3.90i-4.80k) m/s. I am to find a bunch of stuff, but the...
I think this is #5 is my homework, but you're from somewhere else. Interesting. Anyways, it took me a while to figure it out, here's the hints my teacher gave me.
x=vt. the two waves have the same distance, but different times and velocities. set the equation to solve for the known...
--It is found that a 6.00m segment of a long string contains four complete waves and has a mass of 180g. The string is vibrating sinusoidally with a frequency of 50.0hz and a peak-to-valley distance of 15.0cm. (a) Write the function that describes this wave traveling in the positive x...
If you have a car with a remote key, try standing far enough away that it doesn't lock and unlock your car. But then press the sensor against your skin (I like under the chin) and push the remotes buttons. Chances are you'll be a big enough antenna to send that signal to the car and get it to...