Recent content by greedangerfoolishego

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    A paradox inside Newtonian world

    Can you not have the same situation with only 2 balls? If the one on the right has more mass than the one on the left? Can someone tell me why (if) I am on completely the wrong track with regards to the frame of regerence being the problem here? Are you quite sure that the centre of gravity...
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    What happens when wind affects the motion of a ball heading towards a wall?

    Won't happen. The ball will always touch the wall. Greater wind speed just means that the ball travels a greater distance in the direction of the wind before it touches the wall. Imagine running down an endless corridor, and the walls on either side of you are closing in, they are...
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    A paradox inside Newtonian world

    I don't understand. What does that mean? You need to be in a frame of reference that's moving along with the centre of mass so that it appears to remain still. If it moves it means that you are in a non inertial frame of reference, where it is known that Newton's Laws don't hold. Sitting...
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    A paradox inside Newtonian world

    'A non inertial frame of reference is one in which a body violates Newton's Laws of Motion, mainly the First Law. In such a frame, despite no real force acting on a body at rest, it might move; or one that was already moving come at rest or change it's direction of motion. Newton's first and...
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    A paradox inside Newtonian world

    Fair enough! In case I have been a bit hasty in thinking that Newton wasn't refferring to the centre of mass of a system of particles but rather the centre of mass of a rigid body,... I think your mistake is setting x = 0 as a fixed reference point in your system. This point interacts...
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    A paradox inside Newtonian world

    Having read the question again I think this is just incorrect application of Newtons laws, with terminology being misunderstood / things being mislabelled in the supposed paradox. A collective group of body's is not itself one body. The centre of mass reffered to in Newtons laws therefore...
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    A paradox inside Newtonian world

    I thought the whole point of conservation of momentum was that total momentum beforehand = total momentum afterwards. How can you ignore further events if there is that time factor involved? Why are you saying that there is a violation of conservation laws here? Are you saying that because...
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    Question: Evaporation - beyond boiling point

    So, if the energy required to break all intermolecular bonds in a given volume of substance is equal to or is less than the Power(Energy per second) put into substance (assuming 100% efficiency), then total evaporation of the substence will occur in no longer than a second? Is this the...
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    A paradox inside Newtonian world

    So what you are saying, is that after all these masses fall in on each other, assuming collision is inelastic and that it forms one big mass eventually (ideally anyway), is that there is a net force still acting on the system and the resultant mass will continue to accelarate to the left...
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    Question: Evaporation - beyond boiling point

    Hi, I've been wonderring what happens to a substance once boiling point is reached, in particular the rate of evaporation. Am I right in thinking that further energy will cause the rate of evaporation to increase, while temperature of substance remains constant? Is there a point where if...
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