Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final...

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Announcements Grade Breakpoint Adjustment Exam 4 Final Exam Multiple choice (16 questions) Problems like problems on midterms Problems from midterms with different numbers

Transcript of Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final...

Page 1: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Announcements Grade Breakpoint Adjustment Exam 4 Final Exam

– Multiple choice (16 questions)– Problems like problems on midterms– Problems from midterms with different

numbers

Page 2: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Fusion--Two nuclei combine to form a heavier nucleus

First reaction in early stars

11H

+ 11H → 2

1H + e+ + νe

mass before - mass after = energy released/c 2

(2MH1 – 2Me) – (MH2 –Me + Me) =

(2x1.0078250u - 0.0005486u) - 2.0141018 u

= 0.0009996 u (1uc2=931 MeV)

Q = 0.93 MeV

Page 3: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Fusion--Two nuclei combine to form a heavier nucleus

More reactions in stars

11H

+ 11H → 2

1H + e+ + νe

11H

+ 21H → 3

2He

11H

+ 32He → 4

2He + e+ + νe

32He + 3

2He → 42He + 1

1H + 11H

Page 4: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Fusion--Two nuclei combine to form a heavier nucleus

One reaction in a hydrogen bomb

21H

+ 31H → 4

2He + n

Total mass before -Total mass after = energy released

5.0302 u - 5.0113 u = .0189 u ≈ 17.6 MeV

Page 5: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Fusion Reactors Much less radioactivity

– Mostly produces helium-4, but materials near the reaction can absorb neutrons, etc.

Hydrogen is everywhere! It doesn’t work . . . Yet

– Protons repel each other until you get them really close

– Really high temperatures needed

Page 6: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Plasma Fusion

Page 7: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

TFTR

Page 8: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.
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Page 10: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Inertial Confinement Fusion

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Page 12: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.
Page 13: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.
Page 14: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.
Page 15: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.
Page 16: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.
Page 17: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Other practical uses of nuclear physics…

Nuclear medicine– Nuclear treatment (destroy tumors)– Tracer imaging– PET scan– NMR (MRI) ?

Power for space probes Dating materials Sterilization of equipment or food Smoke detectors

Page 18: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Irradiated with

neutrons

Detected electrons emitted

Van Dyck’s

“Saint Rosalie Interceding for the

Plague-Stricken of Palermo”

Page 19: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

After a few hours- manganese

(found in umber,A dark pigment)

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After 4 days- phosphorous

(found in charcoal)

Page 21: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Jackson Pollock – Galaxy

Irradiated with neutrons

Page 22: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Jackson Pollock – Galaxy

Detected secondaryemission of truth

Page 23: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

And beyond Particle physics, QCD, the standard

model Unification theories / theory of

everything String theory

Page 24: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

3 Nephi 12:3Yea, blessed are the poor in spirit who come unto me, for theirs is the kingdom of heaven.

Brothers and sisters, whatever your distress, please don’t give up and please don’t yield to fear. --- Elder Jeffrey R. Holland, General Conference, April 2006

Page 25: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Review Request deBroglie wavelength for relativistic

particle of given Ek

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Review Request Velocity transform

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Page 28: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.
Page 29: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Review Postulates of Relativity

Time dilation

Length contraction

Lorentz transformations – velocity transform

Relativistic momentum and energy

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Review Photons

Bohr Atom

de Broglie Waves

Page 31: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Review Notation – atomic number, mass

number

Half Life

Page 32: Announcements Grade Breakpoint Adjustment Grade Breakpoint Adjustment Exam 4 Exam 4 Final Exam Final Exam –Multiple choice (16 questions) –Problems like.

Review Nuclear Decay

– Gamma

– Beta –

– Beta +

– Ec

– Alpha

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Review Fission

Fusion