What kind of physics is involved in computer production?]]>

Equation of a basic velocity-time graph]]>

We have a transmission system with 3 channels, composed of a single mode fiber and a dispersion compensation fiber. Specifications are given for each. We need to calculate the channel's...

Cross Phase Modulation in Optical Fibers (Fiber Optics)]]>

Is somebody able to calculate this for me?

Thanks!]]>

how many of these neutrons must go on to produce a subsequent fission if a chain reaction is to be sustained?]]>

I have a lot of questions concerning Wave propagation, but I will not pose them all into one thread, because of my experience, that part of them will be overlooked.

So lets get started:

1. Phase shift, E-B- Independence

Consider a plane wave generated by a distant dipole antenna,...

Propagation of EM-Waves, Independence of B and E, and Grav..]]>

Calculus & magnetic force on charged particle]]>

...imply:...

Work-Energy Derivation question: F(x(t)) = F(t) ?]]>

Pressure = ( density of the fluid x h[1] x g ) + ( density of the cube x (h[2] - h[1] ) x g)]]>

This is for...

Coefficients of friction proportional?]]>

I'm looking for some help from someone expert in optics to create an inteferometry based setup to map the surface of a small object. This is for a small lab project so I'm not looking for a really complex setup, I just need something simple that can be built in a short amount of...

Help to find a simple setup for optical surface topography]]>

If capacitance is defined as the amount of charge that can be stored in a capacitor per unit of potential difference, then technically can capacitors made from insulators still have a capacitance? The problem I'm considering is calculating the...

Self-Capacitance of an Insulating vs. Conductive Sphere]]>

Lord Kelvin's Dictum]]>

Can light go around a planet?]]>

I am trying to quantify an impulse from a hand (a high velocity low amplitude motion). In attempt to do that, I've tried attaching an accelerometer to my hand.

My problem is, that the values I'd like to calculate as an objective...

Using accelerometer data to calculate distance]]>

When a fluid is flowing, it has of course a kinetic energy and thus we can define kinetic power equal to ρAv v is the velocity and A is the surface of a solid for example. I have a question (maybe it is a strange one) : When fluid collides with a solid, do all the molecules collide with...

Kinetic energy of fluid + collision]]>

For a specific case let's use a drumstick, noting its volume as a sum of half of a sphere (the 'butt' end), a cylinder (the 'shaft'), the majority...

Center of Mass of Non-Uniform Rod Using Piecewise-Defined Function?]]>

I'm investigating the relation of the length and number of turns of a search coil of a fluxmeter (measure magnetic flux). I got to an equation

B= qR/nA

where q is the quantity of charge passed through search coil

R is the combined resistance of search coil and fluxmeter

n is the number...

Optimum Length & Turns for a Search Coil of a Fluxmeter]]>

Complex numbers sometimes *Required* in Classical Physics?]]>

When a charged particle accelerates, there is a change in its associated electric field at all points in space, though not instantaneously. The "electric field wave" is basically the propagation of the disturbance that occurs when the...

Gravity waves and gravitational radiation]]>

I'm trying to calculate the length of wire that I need to wound a coil using a spool and wire of known dimensions. I was trying to use this converter but I'm not getting good results:

http://www.had2know.com/technology/solenoid-coil-wire-calculator.html

For instance: with a...

Calculate length of wire needed for solenoid]]>

Longitudinal waves and vector potentials.]]>

billions billions electrons. Nothing happen. But i think there is also emission of billions of electrons within small time. Can this process make a...

thermionic emission]]>

I'm literally right at the start of this, with just a sun and an earth. Initially I had my earth going round my...

Dynamics of the solar system]]>

Tex]]>

Pressure of liquid at any point = Depth x Density of Liquid x g (gravity)

But then it continues to state that

Pressure is transmitted in liquid equally

when I studied earlier that pressure in liquid increases with height then...

Pressure in Liquid]]>

And I cannt understand why they haven't expressed the current as a function of time.

]]>

But from conservation of charge, the net charge in a metal...

Electric field due to point charge on an infinite metal plat]]>

How would you explain this?]]>

where n is the viscosity, u is the speed of the fluid (along the z axis) far away from the sphere, a is the radius of the sphere and r,θ are the usual...

Stokes Flow Around a Sphere]]>