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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
41,787 
Consider the configuration below shown in the attached picture!
The wedge can slide on the inclined plane and the...

Mar2214 10:13 PM
Shyan

19 
379 
To calculate the detected frequency from the source frequency, we use this formula:
{ f }_{ D }=\frac { v\pm { v...

Mar2214 06:26 PM
dauto

8 
262 
Hello. I'm a writer going back and doing some fact checking to make an important scene more believable. It involves...

Mar2214 03:08 PM
sophiecentaur

10 
298 
If a group of point charges as a whole, has positive potential energy, what does that mean? What will happen if the...

Mar2214 03:03 PM
jonathan.15

8 
283 
So apparently the natural frequency is zero for uniform column with axial load when P is equal to the critical...

Mar2214 12:54 PM
256bits

2 
170 
Two masses m_1 and m_2 are closing each other with speeds v_1 and v_2 . The coefficient of restitution is e....

Mar2214 08:44 AM
Shyan

3 
189 
I am learning sound. My teachers and textbook say loudness of sound is a subjective quantity, it is different for...

Mar2114 03:16 PM
Manraj singh

4 
180 
What happens in a reversed carnot cycle? I mean in refrigerators.The gas is adiabatically compressed so that it's...

Mar2114 05:46 AM
russ_watters

2 
208 
My textbook says
I'm confused by this, because isn't a standing wave caused by reflection of the waves once it...

Mar2114 01:34 AM
Simon Bridge

1 
162 
I am wondering if there is any way or formula to find Heat transfer from a fix volume of gas that is release into a...

Mar2014 07:52 PM
Simon Bridge

1 
226 
it was mentioned in another thread that only inertial forces are frame dependent or relative.
what is an inertial...

Mar2014 04:13 AM
A.T.

7 
330 
Hello,
I am looking for harvesting piezo elements with the greatest possible power output. Can someone give me some...

Mar1914 08:26 PM
LoopInt

2 
191 
Hello,
For convenience, we can say that a submarine at some depth in sea emits sound wave which refracts from the...

Mar1914 06:14 PM
nikolafmf

2 
155 
I have a problem reconciling something. According to Newton's shell theorem, at any point within a solid sphere, for...

Mar1914 04:55 PM
willoughby

4 
222 
In the book 'Macroscopic and Statistical Thermodynamics' they derived the MaxwellBoltzmann distribution by maximizing...

Mar1914 10:46 AM
Einj

6 
483 
Hi,
I was wondering how you can calculate the intensity of light produced by diffraction orders. If say a laser...

Mar1914 09:17 AM
u0362565

6 
227 
This was something I was kicking around and wanted some advice on.
Let's assume you had a big spaceship  the...

Mar1914 07:56 AM
Lsos

3 
245 
Consider a small, thin loop in the (x,y) plane centered in the origin and with radius a. We are interested in the...

Mar1814 11:59 AM
jasonRF

5 
211 
I am well aware that objects of varying masses, shapes, and surface areas will fall at different speeds and...

Mar1814 11:20 AM
ZapperZ

3 
320 
Are any of you here comfortable with thermodynamic calculations for heterophase fluctuations? Then please help me...

Mar1814 09:19 AM
Chestermiller

4 
211 
On this site I found how to calculate Cd and Crr coefficient from experimantal data:...

Mar1814 08:14 AM
jumpjack

56 
987 
Guy, i have a problem. When we use conservation energy to find the escape velocity, ie the root of potentiality is...

Mar1814 03:11 AM
kaminasimon

13 
329 
Hi,
When we have total internal reflection of light at the boundary of an optically dense to an optically thinner...

Mar1714 08:17 PM
UltrafastPED

1 
212 
"As it is known from classical mechanics, the momentum is the generator of translation", it is from WIKI,...

Mar1714 06:03 PM
strangerep

5 
303 
hey pf!
i was hoping one of you could help me with deriving the navier stokes equations. i know the equations state...

Mar1714 09:06 AM
j_phillips

7 
316 
Hello, and thank you in advanced for this. I am having trouble with setting up most if not all of my integrals when I...

Mar1714 07:41 AM
Simon Bridge

1 
214 
Hi,
I am wondering if total momentum of the system is conserved in this case. Our system is consisted of two balls:...

Mar1714 07:18 AM
sophiecentaur

4 
233 
Today I tried to show that rotational kinetic energy was equivalent to standard translational kinetic energy.
So I...

Mar1614 11:56 PM
subsonicman

3 
257 
I have a solid foundational understanding of far field electromagnetic radiation i.e., two in phase electric and...

Mar1614 11:51 PM
Winchester

9 
334 
Ok, umm these may sound like dumb questions, and im sorry but here goes. (I think i have a lot of misconceptions)
...

Mar1614 08:15 PM
Chestermiller

3 
214 
So, consider an average shorted capacitor connected to an alternating current power source. This capacitor has a...

Mar1614 05:55 PM
Menaus

9 
279 
I've have just registered here in order to post this question. I know it's a good idea to read a
forum for weeks and...

Mar1614 10:07 AM
mrspeedybob

21 
484 
Hi, I'm studying classical mechanics via Goldstein's book, but I don't get the chapter about velocity dependent...

Mar1614 07:55 AM
JonnyMaddox

9 
322 
Can diffraction be explained for tilted light arrays or only normal incident lights can have diffraction orders?

Mar1514 10:40 PM
jtbell

4 
239 
If a red light drops on a red object, we know that all of the red light is reflected, and none is absorbed. But what...

Mar1514 07:29 PM
nasu

6 
196 
Just doing a couple circuit diagrams, and my brain seems to have shorted: If you have two batteries, but they're...

Mar1514 07:24 PM
mfb

1 
177 
Why aren't we using this method? :surprised

Mar1514 04:15 PM
dauto

2 
198 
In nature, all forces have a limited value, i.e, their effect is reduced if many objects are influenced by that force....

Mar1514 03:07 PM
dauto

9 
360 
Is there any difference computationally between say a thin spherical insulating shell and a thin conductive shell ?
...

Mar1514 01:11 PM
UltrafastPED

3 
164 
what is the physical meaning and nature of heat in the molecular scale?
how can molecules emit heat in forms other...

Mar1514 11:42 AM
Simon Bridge

1 
168 