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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
47,691 
I have recently heard a rumor that a hollow pipe is less likely to bend under stress than a solid rod of similar...

Aug511 04:07 AM
xxChrisxx

8 
26,772 
Dear fellows since a long I have been puzzled by the cricket ball swing and reverse swing phenomenon. For fast bowlers...

Aug111 08:57 AM
jonny888

8 
11,394 
how does a cyclotron work?what can it be used to make?
can it be made as a school project?

Aug611 03:15 AM
harrylin

8 
1,824 
So i've been studying optics on my own for about 2 months now and I am having a lot of trouble understanding what...

May1811 07:13 PM
Ertosthnes

8 
23,093 
Can matrix representations of any higher order Clifford Alebras be found ?

Apr2611 09:14 PM
sjhanjee

8 
1,213 
This is highly theoertical and I came up with it taking a standerized test. So with out further adoo,
What would...

Apr2711 07:55 PM
Rage Crank

8 
1,399 
Hi guys,
I know the 2nd moment of area about the z axis is defined as the integral of y^2dA, where y is the...

Apr3011 07:45 PM
ideasrule

8 
2,701 
Hello,
Can anybody explain to me how does this:
dQ=X*dS*grad(T)*dt
t being time and T being TD temperature....

May411 09:24 AM
Bassalisk

8 
2,018 
If you place a charge +q at the exact center of a conducting sphere, will it stay there or move to the surface?

May1311 03:11 PM
Idoubt

8 
1,557 
i need to know how many degrees do i need to be able to find the kinetic energy of the molecule ?? and may i have a...

May1711 06:32 AM
elabed haidar

8 
5,116 
Setting gravitational potential energy's zero at infinity distance, is it safe to say that the limit as r approaches...

May1711 07:37 PM
ZealScience

8 
1,555 
centrifugal pumps and blowers work on the same principal then why centrifugal pumps are needed to be primed but...

May1811 05:36 AM
sophiecentaur

8 
1,295 
So I was thinking about the conservation of momentum. If you throw a handball at a wall, the wall will provide an...

May1811 05:41 AM
sophiecentaur

8 
4,119 
I am pretty much curious to know what actually an electron is? How it is? What is CHARGE? Why there are two types of...

May2311 02:43 PM
DaleSpam

8 
1,735 
Q) A closed chamber containing working refrigerator is pefectly insulated and d door of refrigerator is opened, wat ll...

May2311 02:15 PM
S_Happens

8 
1,583 
Hi,
So I've read that kinetic friction does not depend upon velocity, but that air resistance does depend upon...

May2711 09:04 AM
ZealScience

8 
3,266 
While reading about Minkowski's description of the fourth dimension time axis, I saw that by taking the product of the...

May2811 09:21 AM
lsimpson1943

8 
1,591 
hi
i asked myself whether it is possible to solve the partial differential equation rot E=dB/dt
for the electric...

May2811 02:42 PM
Gavroy

8 
1,270 
I understand that in a mass spectrometer, a particle will first pass through an accelerometer to pick up speed...

May2911 07:42 PM
Redbelly98

8 
1,100 
Hi,
I had a question in my exam at my college that I did not quite know how to answer.
Why is the study of...

Jun1311 04:24 AM
Born2bwire

8 
1,247 
I notice that sometimes there may be 2 ways of getting to the answer  using energy, or "forces'. Can I always just...

Jun1411 10:24 AM
I like Serena

8 
1,677 
Hi All,
First off, everyone on this forum is amazing. Period.
Second, I had a thought experiment the other day...

Jun1611 06:01 PM
Drakkith

8 
1,737 
OK,
if there was a boat with a magnet held in front of it by some sort of arch/crane attached to the boat would the...

Jun1711 01:46 PM
berkeman

8 
5,149 
Hello.
I have two stringbob pendulums of identical length and mass suspended on a loosely hanging rope. I set one...

Jun2611 07:36 PM
Nirgal

8 
2,011 
Example: A conducting sphere X that has an initial charge of +2.0 × 10–8 C and an identical conducting sphere Y that...

Jun2711 08:00 AM
AceInfinity

8 
1,918 
A Changing Magnetic Field Produces Electricity. Suppose we build a huge coil in space and place a strong magnet in...

Jun2811 12:19 AM
ARAVIND113122

8 
2,355 
Assuming that the sun is absolute black body, what portion of radiation coming from the sun, hits the earth?
I know...

Jul211 11:49 PM
klimatos

8 
1,623 
http://img820.imageshack.us/img820/8610/triangler.jpg
I know that if I could apply force F to meet in a single...

Jul511 01:05 PM
chrisbaird

8 
1,729 
If i built a vessel shaped as a water molecule and made it neutrally buoyant with a counter sink (for stability and...

Jul911 04:28 AM
aussie101

8 
1,023 
For electrostatic fields gauss law depends on three factors viz inverse square nature ,central character and principle...

Jul1211 07:39 AM
Uglybb

8 
2,417 
Mentor comments:
This thread was split from an OLD thread that was inadvertently resurrected from the dead. The...

Jul1311 10:44 PM
cephron

8 
2,106 
Hello!
I'm taking Thermodynamics I in the Fall, and I was wondering what topics are typically covered in the first...

Jul1511 03:28 PM
Pythagorean

8 
4,670 
In geometrical optics we consider that an image is formed at the point where two rays meet. But meeting of two rays...

Jul2511 06:39 AM
sophiecentaur

8 
1,921 
Curious your thoughts about the use of a Stirling engine to power a space station, auxiliary power for space ships...

Aug411 12:21 AM
Alfred2011

8 
2,224 
hi
i am currently looking for a derivation of the differential cross section, that is not an abuse of mathematics,...

Jul2611 12:54 PM
xts

8 
3,336 
How can random electron currents in the earth's core create a ordered magnetic field?
What makes a current in the...

Aug111 08:09 AM
lufc88

8 
1,944 
Hi
Suppose a particle is bouncing on a surface with a viscous damping coefficient...
Question 1:
The frictional...

Aug511 11:06 AM
kakarot1905

8 
2,144 
The definition of Δ (difference,drop of) Electrostatic Potential Energy (D EPE) says it
'is the work done on a...

Aug1311 08:00 AM
Evo

8 
1,783 
I am trying to understand birefringence effect. I have read many different sources online, but what I do not...

Aug1611 09:34 AM
chrisbaird

8 
1,970 
Hi all. Trying to find electric field of a disk with a charge density of D and a radius R (let us assume it has a...

Aug1811 06:24 PM
perplexabot

8 
3,268 