• Could the Kilauea volcano erupt with enough force to affect the earth's orbit, like a giant jet engine?

    Best answer: Yes, by an infestiminal amount like angstroms maybe.
    Best answer: Yes, by an infestiminal amount like angstroms maybe.
    17 answers · 3 days ago
  • What causes lightning?

    5 answers · 14 hours ago
  • What is the Physics behind train speed?

    when we are traveling in a train it looked very speedy when we are watching it from outside. But, when we sit in the train it looks not that much fast, as we felt from outside. So, what is the logic behind this? Is it any Physics law working behind this?
    when we are traveling in a train it looked very speedy when we are watching it from outside. But, when we sit in the train it looks not that much fast, as we felt from outside. So, what is the logic behind this? Is it any Physics law working behind this?
    4 answers · 5 hours ago
  • Do physicists believe in determinism? Check details for info?

    Best answer: Many times I have answered this. Newtons laws automatically implied determinism. If we KNEW the position and momentum of every particle in the universe right now then we could consequently calculate every future and every past event. Even adding the Heisenberg uncertainty principle didn't change this because... show more
    Best answer: Many times I have answered this. Newtons laws automatically implied determinism. If we KNEW the position and momentum of every particle in the universe right now then we could consequently calculate every future and every past event.

    Even adding the Heisenberg uncertainty principle didn't change this because the uncertainty was only in our ability to KNOW the answer. Not the existence of the answer.

    Quantum mechanics is what claims that there is actual randomness in the behaviour of particles. They don't even HAVE an exact position. If this is true then the future interactions of the particle is not a determinable function of the position of the particle now.
    And applying chaos theory a small perturbation of one particle leads to a greater uncertainty in the position and momentum of any collision.
    Which means that the future is entirely incalculable from the knowledge of the present.
    Even for a God.

    So the question is really whether our current view of quantum mechanics is correct.

    Of course I can't KNOW the answer so belief is entirely irrelevant. I HOPE that it is correct because I don't want to think that we are all actors simply carrying out a script over which we have zero control.

    If so then things like the punishment of criminals would be morally wrong. But we would do it anyway. Just as they would commit the crimes anyway because neither of us have any real say over what we do.
    5 answers · 2 days ago
  • Is spacetime continuous or discrete?

    Is spacetime continuous or discrete at the lowest possible level? It's generally been assumed to be continuous, but some recent theories argue spacetime is discrete at the Planck scale. If spacetime was confirmed to be discrete, what implications would this have on physics and math? Would a discrete spacetime... show more
    Is spacetime continuous or discrete at the lowest possible level? It's generally been assumed to be continuous, but some recent theories argue spacetime is discrete at the Planck scale. If spacetime was confirmed to be discrete, what implications would this have on physics and math? Would a discrete spacetime model disprove the existence of real numbers in the physical world?
    6 answers · 2 days ago
  • How do I accelerate a toy car?

    I would like to know if you accelerated it by means of weight or maybe not also by propulsion
    I would like to know if you accelerated it by means of weight or maybe not also by propulsion
    6 answers · 3 days ago
  • Could a light sail be used to propel ground vehicles?

    Best answer: No. The impulse of a photon is so very very ... very tiny, that it would take a light sail the size of several city blocks to collect enough photons to create sufficient impulse to accelerate a small vehicle.
    Best answer: No. The impulse of a photon is so very very ... very tiny, that it would take a light sail the size of several city blocks to collect enough photons to create sufficient impulse to accelerate a small vehicle.
    8 answers · 3 days ago
  • How loud would a sound have to be in order to be heard on the other side of the planet?

    Is it even physically possible? Wouldn't the sound itself (difference in air pressure) have a destructive force like a shock wave? I'm thinking either a meteor striking the earth or the loudest loud speaker imaginable.
    Is it even physically possible? Wouldn't the sound itself (difference in air pressure) have a destructive force like a shock wave? I'm thinking either a meteor striking the earth or the loudest loud speaker imaginable.
    11 answers · 5 days ago
  • Do thoughts have weight/Mass?

    Why do my head feel so heavy when thoughts are rushing?
    Why do my head feel so heavy when thoughts are rushing?
    4 answers · 1 day ago
  • Can someone please help with this centripetal force question?

    A 1.0 kg mass is suspended from the ceiling by a 5.0m long cord. The mass is pulled sideways and up until it is horizontal (mass touching ceiling) and then released. Find the cable tension when the mass reaches its lowest point.
    A 1.0 kg mass is suspended from the ceiling by a 5.0m long cord. The mass is pulled sideways and up until it is horizontal (mass touching ceiling) and then released. Find the cable tension when the mass reaches its lowest point.
    5 answers · 2 days ago
  • Why do I hear sonar beeps at night sometimes?

    Sometimes if I'm up late at like 2 am or past that, I hear the sounds of sonar beeps in a submarine the whole night until day comes. It's more spaced out and faint, but I'm not sure what it is. There's nothing obvious I live near that makes that sort of sound.
    Sometimes if I'm up late at like 2 am or past that, I hear the sounds of sonar beeps in a submarine the whole night until day comes. It's more spaced out and faint, but I'm not sure what it is. There's nothing obvious I live near that makes that sort of sound.
    6 answers · 2 days ago
  • A block has a volume of 0.09 m 3 and a density of 4,000 kg/m 3. what's the force of gravity acting on the block in water?
  • If two dimensional beings can only see in one dimension, does that mean we can only see in two dimensions?

    Would you need to be 4th dimensional in order to see in three dimensions?
    Would you need to be 4th dimensional in order to see in three dimensions?
    5 answers · 3 days ago
  • Any tips on making a toy car for my Physics class?

    Best answer: Your car should be heavy, and its center of gravity should be as low as you can make it. You want your car to be stiff; a spongy car will absorb impact. You also want it to be fast, so make it aerodynamic. The more speed, the more energy in the collision.
    Best answer: Your car should be heavy, and its center of gravity should be as low as you can make it. You want your car to be stiff; a spongy car will absorb impact. You also want it to be fast, so make it aerodynamic. The more speed, the more energy in the collision.
    4 answers · 2 days ago