I attempted to solve it, but get the integral of cos(theta)dx, or more properly ds, and i do not know how to...

Loop the Loop with Frictional Work]]>

Acceleration as a Motion or Not a Motion]]>

It's my third year of college studying mathematics. Some of the upper level courses are more challenging, although I'm making it through them. After school, I want to get a masters or PhD in mathematics.

I currently work 10-15 hours a week, and sometimes this adds a lot of stress....

Working through college?]]>

This isn't a homework question really... it's just something i'm not sure how to tackle.

Say you have a 44% chance of being successful on one try, and then another 44% to succeed on your second try, and then a 36% to succeed on...

Probability question for succession?]]>

Friction is a Scalar]]>

Acceleration as a Motion or not a Motion]]>

Hi All! I am wondering whether physics is for me...]]>

Surface Barrier in Type 2 Superconductors]]>

Here's the link: http://msengrol.seas.ucla.edu/]]>

This is Problem 7.6 from

"

Dependence of Phase Velocity on Wavelength]]>

He said that the physical world, in order to exist, we need to interact (with our senses) lol]]>

Why is it that ∅ must be a constant?

I'm trying to understand magnetic field

Scalar potential for magnetic field]]>

Transferring Liquid Helium to Another Container]]>

1. The period of the function f(x) = tanπx + x - [x], where [.] is the greatest integer or floor function is?

2. The period of the function f(x) = sin2πx + x - [x], where [.] is the greatest integer or floor function is?...

Finding period of any type of function]]>

Centroid of Integral Area?]]>

If we take Earth's mass as m...

Bending of space and time, is it true?]]>

Very strange situation indeed - the plane was in a controlled dive, on it's flight path, for about 8 minutes. Why?

Pilot in German Airbus crash was locked out of cockpit: New York Times...

Germanwings 9525 Crash in French Alps]]>

- photon absorption in phosphor coating

- exponential decay in intensity

- CCT/ CRT?]]>

I'm planning on graduating next year from a good school in biophysics with an OK gpa expected

in the range of 3.2-3.3. Not stellar, but this meets the minimum requirements for some masters programs

here (Canada) and across the border. I've read that realistically, applicants...

GPA Requirements, Masters Biophysics Canada]]>

"An object is in "free fall" when the only force acting upon it is gravity".

Is gravity in this case singular or plural?

Is the acting gravity the resultant force of all bodies in the universe?

In theory, my own bodys gravitational force is acting on the object...

What is the definition of "free fall"?]]>

Determine the state of stress at point A on the cross section at section a−a of the cantilever beam. Take P = 350kN .

Um . . . σ = P/A ?

Yeah I'm not quite sure....

Determining the state of stress at a point]]>

Couple of pheromone here:

Metal reflects EM waves (visible light and lower)

Antenna absorbs EM waves

electrical circuit reflects high frequency signals inside the circuit

electrical wire with the right length and right signal becomes an open-circuit/Antenna

I think my question is:...

Metal reflects light & Antenna absorbs light & cuircuit]]>

I'd like to ask about " the vacuum saturation approximation " in a calculation as the decay width of ##

B \to l \nu ## [hep-ph/0306037v2] equ. 1 till equ. 4, that why

## < 0 | \bar{u} \gamma_\mu b | B > ~ and ~ < 0 | \bar{u} b | B > = 0 ## ? and for ##

[ \bar{l} \gamma^\mu...

The vacuum saturation approximation]]>

The advantage the constant-volume combustion type gas turbine engine]]>

Let's say the engines are at the back end of each rocket. For the viewer "A" in the initial frame, they begin moving and continue accelerating simultaneously, and clocks next to...

Clocks Within Each Ship in Bell Spaceship Paradox]]>

Testing how much random is my sample]]>

From the following link http://www.astronomynotes.com/telescop/s3.htm

And I just can't seem to figure out why the first telescope design doesn't show a shadow and in the second why the presence of the secondary...

Understanding reflecting telescopes?]]>

I was given a chart to figure out the different momentum and kinetic energies of different collisions (elastic and inelastic) and in the lab he posed the question

How do I calculate percent elasticity?]]>

My name is Mahmoud, and I am a student who has joined this forum as several times it has answered my questions, even when I have not deliberately searched on here! So took the hint; I joined. Got a PM, and here I am!

I am...

Hello Eeveryone, new student here...]]>

Senior Thesis Topic]]>

Necessary knowledge of standard model for string theorist]]>

for two batteries in parallel then, what happens to the two fields at the junction such that...

Why do batteries in parallel add in current but not voltage?]]>

Euler's Formula Proof]]>

## \lambda <0 ##: ## k=-1 ## :

## a=\sqrt{\frac{-3}{\Lambda}}sin(\sqrt {\frac{-\Lambda}{3}}t) ##

## \lambda>0 ## :

## k=-1 ##: ##...

De Sitter space, basic questions]]>