Does Energy hav e Direction?
361679
No, energy is a scalar quantity, not a vector quantity.  Power is defined as energy per unit time, so it too is a scalar quantity.\n\nQuick Overview/Review:\nScalar: magnitude\nVector: magnitude and direction\nMatrix: magnitude and two directions\nn-dimensional Tensor: magnitude and n directions
329300
It doesn't. When work is done a small amount of the system's energy is converted to entropy (heat) and is lost to the system (usually through friction).
745353
the answer is probably b (I will get to the "probably" part later). the path the electron takes would be bent by the magnetic component of the field (producing a curve) and it will be pushed by the electric field changing the direction toward a specific direction (along the electric field), but movement will all take place in a plane which is along the original direction of propogation IF the electric and magnetic fields are at 90 degress to the original projection. \n\nFor different orientations of the fields, it is also possible to get helixes for the movement path, which do not apply to any of the answers.\n\nAlso, for specific initial velocities, electric and magnetic fields, it is  possible to obtain a straight path.\n\nIf the electromagnetic field is varying with time, there cannot be an answer to this question, since the path can be totally erratic.
510921
No it does not. Takes more energy to twist them. If it was the same you would have a perpetual motion machine. No such thing. You are not creating energy you are only transforming it.
48008
Hick_Ninja's answer is correct if as you say the current is flowing in one direction upward. The right hand rule will give you the answer. Here is an illustration of the right hand rule and how to apply it: http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magfor.html\n\nIf however, you are using an Alternating Current, then the flow direction reverses with some frequency. The right hand rule will still work, but the field is reversing. Here is a good illustration of that:\nhttp://www.sunblock99.org.uk/sb99/people/DMackay/ac.html\n\nThe problem with clockwise and counterclockwise is that they are relative to point of view. So yes, it is counterclockwise in the horizontal plane, but only if looking down on it. Here's an illustration of that:\nhttp://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/wirfor.html#c1
895025
no. there is no such case , theroretically. because, according to the law of conservation of energy the total energy in any closed system is constant. however practically some energy is dissipated in a practical case.
742331
YES,\n\nand I dont even need to do the calculations. \n\nPHYSICS laws state that momentum will stay constant, so is the energy.
555212
Yes, velocity is changing it's direction as well as magnitude. Acceleration due to gravity is acting downward.
698855
The directional North pole of the earth is a magnetic south pole, this is because the north end of a compass points north, and opposites attract, therefore north is...south.\n\nMagnetic lines go from south to north i think, sorry havn't taken electricity/mag class in so long...\n\nanyways, if my thining is correct than it would point towards the directional south\n\ni'd choose "down"
339047
It is just a reference to E=mc^2.  It can be through fission or fusion, so yes you are surely correct.
846365
Thermal energy IS heat.
306748
I am assuming the energy in this context as "heat energy". Then the answer is NO. It depends on the temperature.\n\nHeat flows from body of high temperature to body of low temperature.\n\nImagine a small tank (10ltr) on second floor and a big tank with 100 lt on first floor. If we connect these, water flows from top tank to below tank.\nHeight is synonymous to Temperature.\nAmount of water is synonymous to Heat energy.\n\nPS: Another similarity is electricity.\nTemperature = height of water = voltage\nheat flow = water flow = current\nheat energy = amount of water = charge\nheat resistance = pipe resistance = electrical resistance
1167649
Not quite! The direction the water goes down the plug-hole depends on whther you are in the northern or southern hemisphere. It has nothing to do with magnetic fields, but everything to do with the coreolis effect, which is caused by the direction in which the Earth is spinning.
166601
Light is not bent. I abruptly changes direction as it passes from one substance with one velocity of light into a second substance with a different velocity of light. The amount of change in direction depends on the wavelength of the light.
513160
ONE THING IT MUST HAVE POTENTIAL ENERGY BUT FOR YOUR CONVENIENCE I ASSUME IT HAS 0 KE & PE\nTHE TOTAL ENERGY OF A SYSTEM REMAINS CONSTANT SO IT MUST HAVE "ZERO" END ENERGY
1089285
Conductivity does not depend on direction of heat flow.\n\nFound a paper on thermal conductivity see Fig 3
797659
Yes. A quantum of energy is invariant unless it interacts with another particle. A certain photon of a given frequency and wavelength has invariant energy.