a couple ofvital questions for some physicists

[launchpadmcqwak]

okay my first question is: if an object has no energy going through it can it move through space?

second question is: if two objects both had no energy going through them what would happen if they hit each other?

thanks alot

 

[The_Blue_Rider]

how is this Gaming discussion?

 

[darth.pixie]

What kind of energy are we talking about? I'm guessing, kinetic?

Then for the first question, I'd say yes. Something may make it move by collision or attraction. In order to move an 'inert' object, you must apply energy. If there is no energy, the object is still.

For the second question, colliding hard enough might make them fuse (this entails making one object have kinetic energy otherwise they won't move). If not, they remain 2 objects and their directions and speed are really depended of how they collided. There's another possibility. The collider may literally break the collided object (like tossing a brick through a window). Depends on object.

If neither object has energy they remain as they are. On their own they can't move.

Also, why is this in the game section?

 

[Ranorak]

okay my first question is: if an object has no energy going through it can it move through space?

second question is: if two objects both had no energy going through them what would happen if they hit each other?

thanks alot

Objects that move contain Kinetic energy.
Ergo, objects with no energy cannot move.

It space moving objects don't consume kinetic energy due to the lack of friction.
But in order to have been set in motion they have to had some.

For your second question.
They can't hit, because they can't move.

 

[launchpadmcqwak]

sorry i didnt know where else to turn but thanks for your answers

 

[Twilight_guy]

You can't have an object without energy. E=MC squared bro. Mass is energy. No energy = no mass = not an object. Your question does not make sense.

 

[Twilight_guy]

You can't have an object without energy. E=MC squared bro. Mass is energy. No energy = no mass = not an object. Your question does not make sense.

 

[Ranorak]

sorry i didnt know where else to turn but thanks for your answers

Nice Scott Pilgrim reference in your name there, by the way

 

[GoAwayVifs]

You can't have an object without energy. E=MC squared bro. Mass is energy. No energy = no mass = not an object. Your question does not make sense.

That's not how that works. And to be pedantic, c should be lower case.

 

[Rabid Toilet]

Yeah, object's can't have no energy. Therefore, your question can't really be answered.

 

[isometry]

Even if we consider particles without mass, such as light photons, having zero energy means being too weak to ever interact with anything in the universe. A photon or other massless particle with zero energy would be invisible and undetectable by definition.

(this is because for massless particles E = |p|c , where |p| is the magnitude of the momentum vector and c is the speed of light, so having E = 0 implies |p| = 0, so the particle has no momentum and can't interact).

 

[NotSoLoneWanderer]

sorry i didnt know where else to turn but thanks for your answers

It's just that there are non gaming topic sections to post in.

 

[Erttheking]

1.No

2. If they had no energy going through them then how the Hell would they be able to hit each other, it's impossible for them to it unless at least one of them is moving

Also you want the off topic forum for this.

 

[infinity^infinity]

Energy is not something that really goes through objects, energy is more like something an object has, like how an object "has" mass and "has" density. In classical physics energy is generally split into two "types" of energy; potential and kinetic energy. Kinetic energy is the amount of energy an object has while moving while the potential energy is how much energy an has to move. These two energies are summed up and the result is the object's total energy. If an object has no energy, in a classical sense, that object is neither moving nor can move, so question one is down, if an object with no energy collides with another object with no energy than in order to get them to make contact, energy would have to be imparted onto atleast one of the objects; when this happens conservation of momentum takes hold, momentum is related to energy. There are more advanced topics I could get into with special relativity, but, I really think you don't want to read it; but, essentially when special relativity is taken into account the same answer is reached.

 

[Silent_Protagonist]

1) An object can travel through space with no apparent energy because there is nothing resisting it or slowing it down. Here on Earth there is friction and gravity that will eventually stop an object from moving. In space, once something is pushed in a direction it will continue in that direction until it hits something or something hits it. There is no friction in space, there is nothing to slow the object down or stop it.
2) If an object has no energy, it is not moving. If it is drifting through space, it has momentum therefore it has energy. When to things hit each other energy is converted. From kinetic into one of the many forms of energy.

Hopefully that answers your questions

 

[Loonyyy]

The term "Energy going through them" is without meaning. Energy is a quantity expressing changes that can happen to an object. In conventional Newtonian Physics, all objects have energy relating to their motion (E=0.5mv^2), know as kinetic energy, and may have potential energy, ranging from electrostatic attraction, gravitational attraction, or Nuclear potential. Now, by moving in space, I'll assume we're talking about motion. Newton long ago pioneered the three laws of large body (As in, larger than an electron, ie, describably non-quantum). 1. A body in motion remains in motion unless acted on by an external force.
So an object moving without being pulled by gravity, magnetism, or an electric field will keep moving in the same manner until it's hit by something, or it's motion is distorted by a field.
2. F=ma. The force applied to object of mass m is equal to the mass times the acceleration.
So, when I accelerate an object (Change it's speed or direction, whether it be an increase or a decrease), the force is given thus. The energy involved in this change is called Work, and is given by W=Fs, and other derivations,
3. For every action in nature, there exists a reaction that is both equal and opposite.
If I push against you, your body pushes against me. Best seen on relatively low friction surfaces, ice, on swings, skateboards etc.

Energy is the measurement of the changes caused on the object, so if it's stationary, it has no kinetic energy. To wit, it can't move through space until a force is acted on it (N1), which will give it energy (W=delta E, W=FS).
If two objects have no energy, then they aren't moving. That means they can't hit each other. Energy isn't simply an abstract application, it has meaning, it can be kinetic, heat, all sorts of potential etc.

These aren't really physicist issues, these are basic high school physics, so I'd suggest asking around there, or even taking on physics (It's fun).

 

[Jorpho]

1) An object can travel through space with no apparent energy because there is nothing resisting it or slowing it down. Here on Earth there is friction and gravity that will eventually stop an object from moving. In space, once something is pushed in a direction it will continue in that direction until it hits something or something hits it. There is no friction in space, there is nothing to slow the object down or stop it.

You have everything right there except for the first sentence: to be precise, an object can travel through space without a constant external force being applied to it. But if it's moving, even through space, it has kinetic energy.

The one thing no one has brought up so far is thermal energy: unless an object is at absolute zero (which is physically impossible for a number of reasons), its constituent atoms will always be vibrating, at least a little. But then, that doesn't necessarily qualify as moving through space.

 

[spartan231490]

This question makes no sense. What energy do you mean? What do yo mean by "going through them". An object that is moving possesses kinetic energy, so no object can be moving without possessing kinetic energy, but that energy is in no way "going through" the object, the object simply has it.

Do you maybe mean thermal energy? Like absolute zero? Well the answer is that objects could be moved if they somehow reached absolute zero, and if they collided heat would be generated in both, giving them thermal energy.

That's all I got.

 

[spartan231490]

You can't have an object without energy. E=MC squared bro. Mass is energy. No energy = no mass = not an object. Your question does not make sense.

That's not how that works. And to be pedantic, c should be lower case.

What do you mean that's not how it works, other than the lack of a squared he is correct. Mass is energy, specifically it is an amount of energy equal to the mass multiplied by the speed of light in a vacuum squared. This is the basis for nuclear energy, and has been thoroughly tested and proven.