Is any of these right?

In...

Converting units for angular motion]]>

Am I right in saying:

- The COF is a constant - every pair of materials has a specific COF which is independent of how hard they are...

Coefficient of friction - varying normal force]]>

why cant we exceed the speed of light?]]>

Vibration Based Energy Harvesting]]>

Why an array of telescopes is used?]]>

lesser implies not equal.Why?

I think it is something...

inducing and induced charges -- can be equal or not?]]>

I was thinking...

Is Gravitational Force conserved at the origin (r=0)?]]>

Struggles With the Continuum - Part 1

...

Struggles With the Continuum - Part 1 - Comments]]>

Hankb]]>

I am reading one paper and confused how authors converted V(volt)/A(angstrom) to W(watt)/cm2 (sentimeter square). The article entitled

''Modifying the Interlayer Interaction in Layered Materials with an Intense IR Laser''

Associated link is...

V(volt)/A(angstrom) to W(watt)/cm2 (centimeter square)?]]>

"Violating" Einstein's Photoelectric Effect Model

...

"Violating" Einstein's Photoelectric Effect Model - Comments]]>

Gravitational Paradox]]>

Since I am in the Band at school I was somewhat concerned about if the sound intensity would be too...

Jazz Band sound intensity]]>

what I...

Uniformity of thermal vibrations]]>

It goes like: we guess that ##E_k\propto v^2## and we assume that momentum ##p\propto v##, then equation is valid in another inertial system. And so on. The...

Quadratic forms and kinetic energy]]>

I wanted to try to answer this my self,...

Energy Conservation and Time-Dependent Potentials]]>

As I understand it, and according to Wikipedia, the electric potential energy in a charge configuration...

Isn't Born-Landé equation double the electrostatic energy?]]>

I watched this video and it seemed quite ludicrous to me. The man in the video measured sword speed (which I assumed was angular velocity) with mph.

He then continued to say that...

FFVII Cloud's Buster Sword Busted in Ludicrous Video]]>

I am in the middle of something and I would like to ask a question on how to solve this branch wheeled problem.

The yellow lines are the branches, they have one wheels on them and the wheels are on a...

Problem with wheels and arms]]>

As far as I know, if the angle is 3°, the tension on the rope is g/ cos 3 and the horizontal T = 9,8 * tan 3 (0.0524) = 0.5 N. Is this the only force to consider?

Can you tell me how to...

Genesis of the pendulum formula]]>

I have am idea for Chinese sky lanterns:

A sky lantern that'll:

1.) Take off and fly at a steady pace without a flame

2.) Material will either eventually evaporate in the sky, or shrink down to the size of a quarter.

So, are either of these possible?

Input would he fantastic...

Need help in replacing flame with something else, along with]]>

Div-Curl system is overdetermination which has 3 unknowns and 4 equations.

[tex] div \,{\bf{E}}=\rho, \quad curl\, {\bf{E}}={\bf{S}}[/tex]

Compatibility condition must be satisfied [tex] div\, {\bf{S}}=0 [/tex]]]>

Why is vector addition defined the way it is?]]>

Here's what it looks like when you open a new application for Mac if you're not familiar....

The Highest Point for bouncing Mac Application Icons]]>

Confined Blast Wave propagation]]>

Would this be correct?

##B=\sqrt{B_1^2+B_2^2}##

##B_1=2R\sin(\theta / 2)##

##B_2=2R\sin(\phi / 2)##

Where:

R is the Earth's radius

θ and Φ are...

Calculating straight-line distance between cities]]>

Here, the rope is attached to a vertical cylinder and the particle is given a velocity...

Work done by tension]]>

Could you guys explain how the electric field can be explained with or without -∂A/∂t]]>

2: Voltage is the integral of E field with distance.

3: In a superconductor, or equivalently an with idealized wires having 0 resistance, there can't be any electric field inside. Thus, voltage in a superconductor should...

Why Faraday's law works with superconductors?]]>

when a a stone at the end of the string is rotated with a high speed so that the string is suspended making zero degrees with the plane of the ground, how do we analyze the system from the rotating frame.

View attachment 87972]]>

Can charge be held in a vacuum?]]>

Please give me simple and detailed...

What is major difference in motion in a straight line and motion in a plane.]]>