Apr 18, 2005 · The magnetic constant, or permeability of vacuum \\mu_0 is defined to be 4\\pi \\times 10^{-7} N/A^2. The first time this constant comes up is usually in the Biot-Savart law, however it is not an empirical constant. Why? In what quantity is it incorporated? Is it used to define the ampere (which...

Nov 17, 2010 · Well I am trying to figure out how to find mu if you don't know the force of friction Homework Equations An example is a 2.25 kg block is accelerating at an acceleration of 5 m/s/s and is on a 40 degree ramp. What is the force of friction and what is mu? The Attempt at a Solution When I first look at this problem I write what I know a=5 m/s/s m ...

Apr 4, 2010 · i can see the mean of "[]" in the first row,it is the anticommunicater between \gamma{\mu} and \gamma{\nu}, but what it mean in the second row and the... Insights Blog -- Browse All Articles -- Physics Articles Physics Tutorials Physics Guides Physics FAQ Math Articles Math Tutorials Math Guides Math FAQ Education Articles Education Guides Bio ...

Sep 27, 2012 · "Friction is Fun:" f s =mu s F N Since the degree of incline is 4 degrees, the angle with the "left" part of the x-axis on the free-body diagram and F W is 86 degrees. The Attempt at a Solution After drawing a free-body diagram, I calculated F w =(1500)(9.8)=14700N Next, I used Top=Bottom to calculate F N =14700sin(86)=14664.19154N Third, f s ...

Dec 26, 2023 · Is there some kind of rule when we are supposed to use Fn×mu compared to F×mu or mg×mu to calculate friction? Because I don't get the same answer when I use Fn×mu and F×mu. In magnitude the forces are the same but they are not same in directions. Why is it so? Here is the photo. Problem goes...

Jun 4, 2009 · Hi, I'm trying to compute P^{\mu} = \int d^{3}x T^{0\mu} where T is the stress energy tensor given by T^{\mu\nu} =... Insights Blog -- Browse All Articles -- Physics Articles Physics Tutorials Physics Guides Physics FAQ Math Articles Math Tutorials Math Guides Math FAQ Education Articles Education Guides Bio/Chem Articles Technology Guides ...

Nov 17, 2004 · (mu K) Will someone PLEASE explain to me how to find the coefficient of friction when given the following: a box weighing 325 N moving with constant velocity across a floor, and it is being pushed with a force of 425 N exerted downward at an …

Nov 14, 2011 · In Hartle's book on General Relativity, page 47 footnote 1, it says: "You might be used to thinking that quantities called \epsilon_0 and \mu_0 are the... Insights Blog -- Browse All Articles -- Physics Articles Physics Tutorials Physics Guides Physics FAQ Math Articles Math Tutorials Math Guides Math FAQ Education Articles Education Guides Bio ...

Nov 5, 2011 · KE=1/2(m)(v 2) The Attempt at a Solution for the mu: at first, i tried to use the "elementary" method of summation of forces along the axes but since we're talking about collisions, i think i should use the work-energy theorem... but now i don't know how to put mu into the equation: KE=1/2(m)(v 2)

Apr 14, 2011 · Hello, :wink: I see for micro the Greek symbol μ - mu - is used. Then why don't it pronounced mu volts etc. instead of micro volts? Tell me the reason please. Many thanks for this. Cheers