Nuclear physics (1)

Physics: Nuclear physics. Protons, neutrons, and electrons. Mass number (A) and atomic number (charge number, Z); conventional symbolism for nuclei. Alpha, beta, and gamma particles; alpha, beta, and gamma decay. Mathematics of radioactive decay; decay constant; half-life. Radioactive dating (carbon-14)

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(1) Proton, neutrons, and electrons—mass and charge. Atomic mass units and elementary charge units
(2) Mass number (A), atomic number (charge number, Z)
(3) Conventional symbolism for nucleii. Alpha, beta, and gamma particles
(4) Alpha, beta, and gamma decay
(5) Problems
(6) Mathematics of radioactive decay; decay constant (lambda)
(7) A problem
(8) Half-life
(9) A problem
(10) Continued. Relation between decay constant and half-life. A radioactive dating problem (carbon-14)

Category:

Education

Tags:

• nuclear
• physics
• nucleus
• proton
• neutron
• alpha
• beta
• gamma
• particles
• radioactive
• decay
• half-life
• dating
• carbon-14
• atomic
• number

[METALFREAK193]

he reminds of alan from two and a half men :P

[pirkleator34]

So this is what my life has come to....

[Salsthename]

Is this good to watch before i leave for navy nuke school? :p

[catdanceable]

money?

[djpajop]

is that a chalk holder?

well that's lame.

[RpageMPG]

@CYBERlite2010 good point. This is because of the light that reflects off of the actual particles more than compensates for the light that makes it through the empty space, which is very minimal anyway.

[CYBERlite2010]

Steve, I have a doubt. If things are mostly empty space, why are they opaque?

[deonisdeonis]

photon has 0 rest mass, is more correct

[LifeIsABigPuzzle]

@Darkaero199 I hear that France has released all of its top secret UFO information to the public. So all governments know about this and some of them have even released the information to their citizens.

[Darkaero199]

@LifeIsABigPuzzle I'm not into people who claim to be experts on something it's impossible to know about. It's fine to speculate and to advance out knowledge of the cosmos, but discussion of extraterrestrials we have no real scientific evidense of (despite what conspiracy theorists think) if they did the WORLDWIDE scientific community would jump on on the topic without hesitation, it wouldn't just be a United States venture.

[LifeIsABigPuzzle]

@Darkaero199 Quite Possibly. Look up Stanton Friedman sometime.

[Darkaero199]

@LifeIsABigPuzzle if there are extraterrestrials that are capable of intergalactic travel they'd have far more advanced knowledge of universal physics (both quantum and general) than us so it's hard to speculate if one branch of physics would explain their propulsion systems.