problem

Neutrons and protons, which make up the nuclei of atoms, are themselves made up of smaller particles called quarks. A proton is made of two "up" quarks and one "down" quark while a neutron is made of two down quarks and one up quark. Quarks have an interesting property called confinement, in that no single quark can be isolated and observed. We can still measure their properties such as mass in accelerators, but there's a simple way to get an estimate of mass differences between quarks using elementary electromagnetism and the masses of the neutron and proton. How much heavier is the down quark than the up quark in kilograms, if the the mass difference between the neutron and proton is due to the different total quark masses and the different electrostatic energy?

To convert energy into mass and vice versa, use E=mc2. i can't get the solution for this question today date is 27 feb

Easy Math Editor

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Comments

Cheating...............hmmmmmmmmmmmmmm. The answer is : try urself

Edward Elric - 8 years, 4 months ago

Ya. :)

Zi Song Yeoh - 8 years, 4 months ago

Thanks for pointing this out. Will be closing this :)

Calvin Lin Staff - 8 years, 4 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$