Transmission from inertial to circular motion
Suppose that we have a body that is moving at a straight line, inertially wrt to another frame. If it starts to move in a circular way after that, what can be said about the motions of its points. Do...
View ArticleEoM for rigid body, wrench and twist help
I am currently working on a robotic manipulation problem and need to form a model for how an object responds. I start by writing up the equations of motion for the body, the motion is then constrained...
View ArticleAdvice on buying a laser for 3D modeling
I'm developing a scanner that uses a laser for edge detection. It will be mounted on a hexacopter that will traverse a short distance through a cave/tunnel system and produce a 3D image. I'm still...
View Articlefrom where the E inside the battery comes from?
So as I am junior high school student just learned that when the terminals of wire are connected to a battery,an E (electric field) is established inside the battery from positive to negative...
View ArticleFlow Rate and Area of Hole
Let's say that you have an open tank of water and a hose connected to the bottom of it. Water is flowing out of the hose. You then cover half of the hose with your thumb. Will the flow rate...
View ArticleStandard Deviation of Kinetic Motion
If thermodynamic temperature can be interpreted as the average kinetic energy in a system, is there a quantity defined as the standard deviation? For example, lets say you poured some hot water into a...
View ArticleKinetic Moment about the center of gravity
Hi I need some help explaining kinetic moment and moment of the center of mass. This is an example: http://session.masteringengineering.....ch17.p107.jpg Okay I know that when you do moment equations:...
View ArticleThe Force of an Array of Perm. Magnets on a Large Iron Body
For my senior physics research project I've developed an orbital analysis program that calculates the minimum [itex] \Delta V [/itex] required (applied in an instantaneous impulse) to deflect an...
View ArticleCharge distribution, electric potential and Woods-Saxon function
Hi. In this page the Woods-Saxon function is mentioned as describing the charge distribution for in the atomic nucleus. However the Wikipedia page for the WS function describes it as a formula for the...
View ArticleInternal and external torques.
How do I tell if a torque on a system is internal or external before conserving angular momentum? I know that if a force has its reactionary force in the system, then it is an internal force and we can...
View ArticleIs pressure constant when you heat a balloon?
I am teaching Physics and I'm not looking for help for a particular homework problem but on a class. Sorry if this should be in the homework sections. When I park my car where the sun only hits one...
View ArticleAcceleration in Circular Motion
Could anyone help my with proving that the acceleration of an object that is moving with uniform circular motion is directed towards the centre of the circle and is of magnitude ω^2(r). Thanks
View ArticleGravitational Constant
Quick question.... Can the gravitational constant only be used for earth or can it be used in questions regarding other planets?
View ArticleHydrostatic pressure and consequences of pascal's law
I've had a doubt about the following (somewhat contradictory) statements. 1) pressure applied to an incompressible fluid is equally transmitted at all points. 2) pressure at points at different heights...
View ArticleKinetic energy relative or absolute?
Hello folks! I have just come from a night at the pub with fellow students of life where over many a pint several mysteries of the universe were discussed. One of my friends asked me a question...
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Maxwells relations for an open system
Hello I have learned about maxwells relations and can derive them. I noticed that we had made an assumption of a closed system. We just learns about chemical potential and the fundamental relations for...
View ArticleThe Equipartion principle for diatomic molecules
It is taught that the classical treatment of the diatomic atom would give a heat capacity of $7/2$ due to 7 degrees of freedom, (three translational momentum, two rotational momentum, on vibration...
View ArticleIf we could put Earth in a weighing machine...
... regardless of any possible technical problems, and then, on earth: a) someone throws an object in the air and it falls b) someone puts an object to float in a magnetic field generated by an...
View ArticleMagnetic H field
Hi all, im trying to get my head around some experiment results but im struggling a bit. According to my notes H field strength is equal to MMF / effective length However this doesn't take into account...
View ArticleWould The Position of the Center of Mass Change Position?
Take a uniform density bar in space for example. Would the center of mass move if the bar was struck at the very tip perpendicularly by some weight? If so, please explain.
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