I understand that static pressure is a scalar quantity as it acts equally in all directions, then by the same reasoning dynamic pressure should be a vector quantity as it only can be measured by opposing the flow.  I understand that the act of opposing the flow will instantly convert dynamic to static but I am asking in theory?   Thanks all the answers ( @Nikos M. ) and assistance , However I am still unclear as to why dynamic pressure (at any instant) is not thought of to be a force acting in a specific direction (perhaps vector is not the right term ?)
I have a final exam tomorrow for fluid mechanics and I was just looking over the practice exam questions. They do not provide solutions. But pretty much I have to define pressure at a point and also say why pressure is scalar instead of a vector.  I am thinking pressure at a point is $P=\lim_{\delta A \to 0} \frac{\delta F}{\delta A}$. Please let me know if I am wrong.   But I do not know at all why pressure is a scalar instead of a vector. I know it has something to do with $d \mathbf{F}=-Pd \mathbf{A}$
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If one app cant do all, I am willing to use 3, wouldn't mind exposure to a few more apps ;)  I have used picard or someting, and I didnt like it quite a lot. But wouldn't mind using it, if there is no other alternative.   Thanks for your time! elementary row operation change the eigenvalue of a matrix Idiom/Phrase for "results without work/effort" I'd be greatly appreciative of a cleverly devised idiom/phrase that depicts the following concept:     Results without work/effort.   ...and/or...     My Work/Effort; Your Result.   Any idioms/phrases you can recount or conceive would be of use.    Contextual Edit:  The idiom/phrase should be in the context of service offering/hiring or task delegation, not free-loading as most answers thus far have understandably assumed. E.g.     [You hire me for] My Work/Effort; [My work/effort produces] Your   Result. Extract information from a text file How can I animate the Restrict Visibility property of an object? I've been trying to create an animation where an object blinks on and off.   For example, I have a Cube and I set a keyframe on it's Restrict Visibility icon (the "eye" icon) with I, then I toggle off that "eye" so my cube doesn't show in the Viewport and again I press I to record that keyframe. Then, when I preview the animation in the Viewport, I see my cube appears and then disappears like I want, but when I render it, the cube does not disappear at all.  What am I doing wrong? How many attacks can a fighter with two-weapon fighting make at 5th level? I have a 5th level fighter with the Two-Weapon Fighting fighting style.   What is the number of attacks I can make?   I say 4 attacks, but others say 3 because they say the rule on page 72 states that I get (only) 1 extra attack. How to copy all files from a directory to a remote directory using scp? Access personal views in a list with PowerShell I am trying to first access and then edit Personal Views for a SharePoint List using PowerShell. However only the public views are returned. In the example below the list called List1 has two views - 1 public and 1 personal created by a regular user account (contoso\user1).  I run the script below via an admin account (contoso\spadmin) -  $url= "http://portal.contoso.com/sites/TEST" $web = Get-SPWeb $url $list = $web.Lists["List1"] Write-Output "Count = $($list.views.count)" $list.views| % {Write-Output "Title = $($_.title)"}   Result -  Count = 1 Title = All Items   I tried the following as well but that did not return the personal views.   [Microsoft.SharePoint.SPSecurity]::RunWithElevatedPrivileges( {      $web = Get-SPWeb $url     $list = $web.Lists["List1"]     Write-Host "Count = $($list.views.count)"     $list.views| % {Write-Host "Title = $($_.title)"} } )    How do I access the personal views for a list with PowerShell? 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