Quarks, conservation, entanglement
Doubt from AskPhysics.com
I have heard the following statements->
1. Quarks always exist in a group of 2 or 3, and can not stand alone.
2. Protons are made up of 2 up quarks, and 1 down quark.
3. Quantum mechanics allows us to entangle a particle by somehow dividing it into 2(For example, if a proton’s energy is 5 joules, if we split into 2 then sum of both splitted particles will have energy sum of 5 joules.)
Aren’t the statements contradicting each other? Please tell me correct if anyone of my statement is incorrect. Thank You!
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Prepare for Physics oral test too during lockdown
Plus Two Physics Oral Test series Many schools have started oral questioning also as part of diagnostic and formative assessment. The initiative was …
Prepare for Physics oral test too during lockdown
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Theory of Relativity
The basic concepts of relativity are explained in a very simplified way that are easy to understood by Mr. Vivek Sawhney in this YouTube Video… The video focuses upon the general discussion on Theory of Relativity….What is the theory of Relativity? What is time dilation and length contraction?
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What is the theory of Relativity and where it’s concepts can be applied?
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A numerical problem from motion in 1 Dimension
A boy plays with a ball on a field surrounded by a fence which has a height of 2.5m . He kicks the ball vertically up from a height of 0.4m with a speed of 14 ms−1. (a) What is the maximum height of the ball above the fence? (b) What is the time taken to reach the maximum height? (c) How long is the ball above the height of the fence? (d) What is the velocity of the falling ball at the height of the fence? (e) What the acceleration of the ball after 1s ?
Asked John
Answer:
(a)
u=14 m/s
v=0 m/s at max height
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The fundamental principles
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Vivek Sawhney
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