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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
41,717 
Some of the following is more or less Halliday & Resnick, 4th Ed., section 9.8 (not the whole section and I added a...

Jul1911 05:38 PM
Drakkith

3 
1,171 
I am studying the influence of a gyroscopic effect of wheels/tyres on a steering system in a car. I can't seem to get...

Jul1911 04:39 PM
refusenik

0 
738 
consider two wires of different diameter. when current enters from that of greater diameter to lesser diameter drift...

Jul1911 11:04 AM
chrisbaird

2 
2,666 
Hey All,
Maybe a silly question, but... Is there a limit to how much a certain element can heat a body of air, say...

Jul1911 10:33 AM
DaveC426913

5 
1,261 
I was working on semirealistic projectile dynamics.
The first thing i took was what if a sphere is thrown upwards....

Jul1911 10:11 AM
chrisbaird

2 
977 
I have read kinematics and laws of motion(1st,second and third). In these two chapters one thing i found that ...

Jul1911 10:11 AM
xts

4 
1,339 
Hello, I have a problem understanding wave propagation in dispersive medium because the prescription to solve the wave...

Jul1911 09:33 AM
chrisbaird

13 
2,375 
is it necessary ffor coherent waves to be of same frequency? bcoz everywhere i read its written dat they must have a...

Jul1911 09:18 AM
sophiecentaur

3 
1,168 
Could someone verify that my thinking is correct, or point out the mistakes if it is incorrect?
I'm trying to...

Jul1911 09:14 AM
sophiecentaur

2 
1,454 
My name is Derek Cox, I am new to the forum and I am not an engineer or anything close. I have a degree in flight...

Jul1911 04:23 AM
tinytim

4 
1,597 
Hello ! I have an exam this Wednesday... your help will be appreciated...
There are two types of questions I can't...

Jul1911 01:13 AM
noamriemer

2 
722 
This is a simple question I have because I am looking at a particular engine cycle, and I can't seem to think of its...

Jul1811 09:41 PM
shanesworld

7 
1,333 
Hi, I'm trying to understand point charges along a uniformly charged line with a charge per unit length. This is a...

Jul1811 07:43 PM
gsal

2 
520 
I would like to know whether Kelvin or KJs matter when it comes down to a material radiating and / or conducting its...

Jul1811 05:55 PM
Drakkith

2 
869 
Hello Forum,
if we take a Gaussian beam whose waist occurs at the front focus of a positive lens, we will see that...

Jul1811 03:29 PM
fisico30

0 
957 
hi
i have been thinking about this scaling problem: Let me say a man and a cat jump from the top of a high...

Jul1811 11:29 AM
chrisbaird

9 
1,438 
A wire is broken down into 12 pieces so that each piece is of resistance 1R. The pieces are joined together to form a...

Jul1811 09:39 AM
A.T.

3 
1,145 
A researcher is interested in creating a particle accelerator that can spin particles in the uniform magnetic field at...

Jul1811 04:46 AM
tinytim

1 
1,612 
In a paper by Coombes and Laue (Electric fields and charge distributions associated with steady currents) an...

Jul1811 04:41 AM
shoestring

1 
2,186 
Hi, this should be an easy question unless I'm not understanding it correctly.
As an object gets closer to your...

Jul1811 12:24 AM
RedX

6 
2,313 
I understand the surface of the sphere is 4\pi sr. where the area of one sr is r^2.
My question is why d\Omega =...

Jul1711 07:29 PM
BruceW

1 
1,368 
I've been wondering for a while, a Rodin coil's magnetic field generation is the center as a strong open air magnetic...

Jul1711 05:14 PM
Schreiberdk

1 
2,890 
why electromagnetic waves are represented by complex numbers?

Jul1711 03:27 PM
yungman

2 
1,252 
in electromagnetic books, we see by the aid of vector calculus, we can reach to wave equation from Maxwell 's...

Jul1711 03:20 PM
sadegh4137

6 
1,243 
The terms internal energy, enthalpy, entropy are state functions. Are change in internal energy(\DeltaU or...

Jul1711 10:31 AM
Mapes

1 
1,989 
So, I was trying to find a rigorous mathematical derivation of gauss's law(please I don't want to hear again any field...

Jul1711 09:23 AM
Meir Achuz

1 
1,856 
every people know that covariance principle is important in physics.
before Lorentz transformations and special...

Jul1711 09:16 AM
Meir Achuz

2 
739 
Okay, I am currently reading about motion on inclined planes and how the normal force acts directly perpendicular to...

Jul1711 07:00 AM
Doc Al

7 
1,690 
how polaraization occurs?what is happening inside a polaraiser?

Jul1711 06:51 AM
Drakkith

2 
743 
Hi all. Trying to find work done for a gas... Here is the question:
A quantity of air is taken from state a to...

Jul1711 06:27 AM
Philip Wood

12 
1,426 
Would it be possible to use a MASER to vaporize a hole in a cloud?
How much would the current best MASERs spread...

Jul1711 06:23 AM
sophiecentaur

3 
640 
Before i start my question , i have to mention that I'm only a beginner for physic and chemistry , if possible ,...

Jul1711 06:06 AM
sophiecentaur

1 
836 
Classic paraboloidal mirror. Incoming flat wavefront of known wavelength (500 nm, green light), propagating parallel...

Jul1611 10:53 PM
halfelven

0 
1,448 
when a can of coke placed in a sensitive balance is opened what happens to the reading?
the answer of this question...

Jul1611 05:36 PM
sophiecentaur

2 
1,131 
why all the charges in conductor reside on surface?

Jul1611 01:23 PM
Philip Wood

2 
780 
why electromagnetic wave is transverse?

Jul1611 08:21 AM
BruceW

2 
732 
Without causing a spark.

Jul1611 01:43 AM
Calvin Cox

0 
779 
suppose g(r) is a scalar function which is constant inside the volume 'v' but discontinuous at the boundaries of 'v'....

Jul1611 12:36 AM
RedX

1 
824 
This bothers me a bit:
Gases? You include in the chapter of "fluid mechanics" gases? These are two different...

Jul1511 05:15 PM
I like Serena

31 
3,163 
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 
4,433 