Is mass and time one and the same?
819378
It's a common misconception that the mass of an objects actually increases as the object approaches light speed.\n\nPeople get this from the equation M = m*(Lorentz factor) where M is the "relativistic mass" and m is the "invariant" or "rest" mass. For example, if I'm holding a 5kg rock in my hand, that's the invariant mass.\n\nAs the object is traveling, nothing is actually happening to increase it's invarient mass. Rather, it's best to interpret the equation as saying that it takes an infinite amount of energy to accelerate the object to light speed (for reasons that have to do with messy things). A loose analogy is, when you have your hand out the window in a slow moving car, it's rather easy to move your hand forward, but the faster the car goes, the more your hand feels the effects of the atmosphere and it becomes more and more difficult to move your hand forward. Your hand didn't increase in mass, but from the viewpoint of the muscles you use to move the hand forward, it seems as though it has.\n\nThe equation for time dilation: T = t*(Lorentz factor) where T is the time interval measured by the stationary observer and t is the time interval measured by the moving observer, is of the same form as the "relativistic mass" equation but this doesn't make time and mass the same. Using algebra we can arrange the equations so we get:\n\nT/t = M/m\n\nThis just means that the same characteristics govern both phenomenas and so the ratios are the same.
471623
elasticity of time refers to its non-uniform nature according to the theory of relativity.\n\naccording to einstein's work, time is experienced differently by different observers depending on their motion and acceleration ( gravity ).  \n\nthe take home message is that time is not absolute but an observer related measurement. this result is an extension of the assumption that the speed of light is always fixed for ALL observers.
437310
Every mass in motion is said to have mechanical energy.\nHowever a mass is also structure ed with atoms wich are also moving with mechanical energy. The is the energy of the structure. You can represent it a the total mass  time velocity of light squard. Usally in the motion of masses the mass changes are very small. Hence you can consider mass as a constant. The mass time the final velocity squared of the moving mass is the mecahnical energy of maas in motion. assuming there is no friction. if there is friction you must substract the energy loss due to friction.
845137
I don't belive mass equals acceleration. Mass is suppost to increase the faster you go but speed is also relative to the position and speed of the observer. I would try to think of it as speed affects the mass of an object. The mass of an object at rest is less than the same mass at speed.
4719
Time is a property of universe by which we discriminate two different states of universe.\n Such as time helps us to discriminate the difference between an apple in the tree and the same on the ground..\n That is why time is always measured by the changed states of some device or fact (two ticks of aclock makes a second).\n But the reverse is not true-If we see an apple for 1 year on a tree we can't say the events are at same time.That is because our mind can measure time too.
390389
What is says is that energy and matter are one in the same.  Energy can be readily converted into matter, and vice versa.  The speed of light squared is the proportionality constant between energy and mass.
1158518
It has been established to very great degree of accuracy that inertial and gravitational masses are same.So they must be same too.
718152
weight equals mass times acceleration due to gravity
750315
Newton just claimed that was true.  We have made millions of measurements which support the theory.  But I know no way of proving it.  A separate question is whether inertial mass equals gravitational mass.  Again, all the measurements we've ever taken support the idea, but we know no way to prove it.
615899
Physicists like to lump time with space. The distance between A and B can be expressed as distance or time. \n\nBut, what is time? That's a bit like "what is mass?" or "what is charge?"\n\nThis is what we know about time. \n1. It is relative.\n2. It has a forward bias with respect to our perspective.\n3. The faster your friend goes, the slower he moves.\n\nI think you just have to accept it for how it is.
504321
Mass (according to Einstein) coz mass changes into mass.
425701
No. You can understand the difference by going back to its source: the Newton's Second Law.\n\nF = ma\n\nThe weight of an object is the attractive force (F) exercised by the Earth on that object.\n\nAs the above equation shows, the mass (m) of an object is the constant of proportionality that links any force exercised on the object with the consequent acceleration (a).\n\nSo you see that the weight is a special case of force, that you have when a is the Earth's gravity acceleration. \n\nNow suppose you bring the same object on another planet, say Mars, where the gravity acceleration is different. Its mass doesn't change, but the weight does!\n\nThe weight of an object is an Earth accident, while its mass is a more fundamental concept because its value remains constant (at least within the non-relativistic limit, but this is another story).
593915
there are not a same time for things in the world time is dependent to speed of things for example if you have an speed near the speed of light your time is difference with me that i have a low speed .on the upon of relativity theory by Albert Einstein
502927
Energy equals mass times the speed of light squared
394861
I have no idea. But Steven Hawking says we cant travel back in time, and Einstein showed that hitting the speed of light with a mass is pretty unlikely. But that has no effect on the massless.\n\nAnd E=MC2 is just the rest energy of a particle of mass M and has no time travel implications.\n\nI know Cal-tech has some research in this field... look into it.
148681
Only objects of the same mass (Weight) fall at the same speed. Objects of different size (Shape) can fall at different speeds.
471434
The same time as it was one second ago. The only reason it would change would be if the time was like 8:21:59; one second from that would be 8:22.\n :)