Newtonian & Einstein Quantum Mechanics

AI Thread Summary
Newtonian physics operates on the principle of absolute speed, suggesting that if an object travels at a certain speed, the speed of light can be added to it, leading to contradictions. In contrast, Einstein's theory of relativity establishes that the speed of light is constant and dependent on the observer's frame of reference, resolving these paradoxes. The discussion highlights the importance of understanding both Newton's and Einstein's contributions to quantum mechanics, particularly in how they redefine concepts of speed and motion. Resources like NOVA's "The Elegant Universe" are recommended for further exploration of these topics. A solid grasp of introductory physics texts is also suggested for a deeper understanding.
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Homework Statement



I have a paper due Friday in ap Physics and i can't seem to find anything on the subject that doesn't involve reading an entire textbook. Ok so we first must compare/contrast Newtonian & Einstein Physics, then explain their contributions to Quantum mechanics.

The Attempt at a Solution



so i know about the 4th dimension, and that somehow Einstein's general relativity and Newtons model somehow are different. any help would be great i love physics but unfortuanately my teacher is a better babysitter than teacher.
 
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You may want to be careful about insulting your teacher - many of us contributors are physics teachers!

Maybe you could start with this: If a ship was traveling 300 million meters per second, and shined a flashlight beam out in front (light travels at 300 million m/s) then Newtonian mechanics says the "absolute" speed of the light beam would be 300 + 300 = 600 million m/s. But light never travels faster than 300 million m/s. Einstein's mechanics resolved this paradox. One of the results, for example, says that there is no such thing as an "absolute" speed; speed always depends on who's measuring.

NOVA has an online show called "The Elegant Universe" and the first couple chapters have some good comparisons between Newt and Ein.

To get any better than that, you will need to read a lot. Maybe not an entire textbook, but at least get your intro textbook and read the sections on Relativity and Quantum.
 
merryjman said:
NOVA has an online show called "The Elegant Universe" and the first couple chapters have some good comparisons between Newt and Ein.

You can watch it here.
 
sorry i didn't mean to insult him i just get upset when my potential is thwarted, especially since i love physics

thanks for the help. =)
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...

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