an entertaining commentary on His beiefs

http://www.newyorker.com/news/news-desk/ben-carsons-scientific-ignorance?intcid=mod-most-popular more authoritative critique

While He seems to have a live and let live philosophy i.e. I...

The Big Bang Theory a Fairy Tale?]]>

In another thread I came across a link to the Wikipedia article on the hierarchy problem:

https://en.wikipedia.org/wiki/Hierarchy_problem

Unfortunately, after reading the article several...

Why is the hierarchy problem a problem?]]>

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

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

In the arrangement shown,find the equivalent capacitance between A and B.

View attachment 92433

Capacitance in parallel

##C##=##C_1##+##C_2##

Supplied...

Capacitor combination problem]]>

A beam of wavelength 600 nm has initially an intensity profile of Gaussian shape with a

fwhm of 1 mm. Determine the intensity profile and fwhm 10 meter away.

FWHM = λ/(2NA√(1 + I/Is))

Determine the intensity profile and fwhm for gaussian beam.]]>

Find all ##{\cal C}^1(\mathbb{R}_+^\star \times \mathbb{R},\mathbb{R}) ## solutions to the pde ##x\frac{\partial f}{\partial y} - y \frac{\partial f}{\partial x} = cf##, where ##c## is a constant. Use a polar change of variable....

solving a pde]]>

How would you explain this?]]>

Soon I will turn 22 and I have not yet managed to attend college (That is due to certain circumstances).

By the time I will attend my first class (Supposing that will be in Oct/2016) I will be almost 23 years old and doing my bachelor of science in Electrical engineering.

I am kind of...

I will be 22 soon and kind of frustrated!]]>

Determine if the following is a linear transformation or not

f : IR2 → IR, f(x, y) = x + y

T(x+y) = T(x) + T(y)

T(ca) = Tc(a)

I can't tell you how much I've...

ILinear Transformations / Isomorphs]]>

Further If I apply a Battery Cut-Off Switch, will ignition works when Battery Cut-Off Switch is off..??]]>

Directional couplers for cable tv]]>

Not sure how to type in Latex, so i uploaded a picture, using the whiteboard...

Differential Equation (Laplace transform involving a convolution)]]>

Motion of parallel-incoming particles in gravitational field]]>

My textbook says that A[X, Y]/(XY) is a subring of A[X]⊕A[Y], but aren't they isomorphic? (A is any commutative ring)

1st Ismorphism Theorem

I can construct the...

Aren't these isomorphic?]]>

https://www.osapublishing.org/optica/abstract.cfm?URI=optica-2-7-611...

Violation of Bell inequalities for classical fields?]]>

Naively it seems that any central mass would attract DM from the mass's general vicinity so that an approximately spherically symmetric accumulation would develop over time about the central mass. This seems to...

Why is there no DM halo around the solar system?]]>

So, I always make mistakes on problems such as this (the grounding part), so I'm hoping someone could really explain to me how the process works instead of just answering this particular problem.

There are n large parallel...

Grounding parallel plate conductors]]>

So I was asked this question the other day and don't really know how to go about it:

"Define a random process by:

X

X

Given that X

Interesting Random Process]]>

I know that the chemical shift (Hz) of a particular chemical will vary with B0. As I understand (although this may be wrong) ppm is frequency independent so the peaks should always be in the same...

NMR spectroscopy question]]>

For example, can you say that 1/2 mole has 1/2*(6.023*10^23) particles?]]>

Here is the link to the old thread. https://www.physicsforums.com/threads/random-thoughts-part-three.745013/]]>

I am trying to teach myself Measure Theory and I am using the book: Real Analysis by Stein and Skakarchi from Princeton.

I want to check if my answers to the questions are correct, so I am asking: Does anyone have the answers to the questions in chapter 1 ?]]>

I am attaching the image below. Kindly tell me how to calculate the values of A and B in the given figure?

Now I must find A and B. How to get it?

Thank you]]>

My Superparticle Bet with Frank Wilczek

...

My Superparticle Bet with Frank Wilczek - Comments]]>

A uniform stick is held horizontally and then released. At the same instant, one end is struck with a quick

upwards blow. If the stick ends up horizontal when it returns to its original height, what are the possible values

for...

Maximum height of CM of a rotating stick]]>

Caculate the acceleration of m1, m2 and M, and the tension T in the...

Confusing mechanics(Extracted from my university physics paper)]]>

Thanks everyone]]>

I am starting to design a new cargo RC plane and I end with this trouble.

I want to select a motor but I do not know the required trust.

Is there any equation or steps that I can apply to decide the motor??

Thanks!]]>

Newton Raphson method (convergence problem)]]>

Change the Cartesian integral into an equivalent polar integral and then evaluate.

x=rcosθ

y=rsinθ

View attachment 92478

I have:

∫∫r

The bounds for theta would be from...

Double integrals: cartesian to polar coordinates]]>

Should I even bother going into engineering?]]>

View attachment 91618

The given ans is 9600 as attached above, but i get 15 000.

hello this question is discussed in 2009 but it is closed now

If you invest £1000 on the first day of each year, and interest is paid at 5% on

your balance at the end of each year, how much money do you have after 25

years?...

infinite series Geometric series]]>