Geophysics lecture chapter 1 the earth in the solar system

... Pb 204 Pb � = 4.46 (1. 36) 16 CHAPTER THE EARTH IN THE SOLAR SYSTEM The age information is contained in the slope, M , using only isotopes of Pb The value of 235 U/238 U is 1/ 137.88, and this ratio ... (1. 1) in terms of the mass of the sun and doing so yields L = mr2 ω = (GMs )1/ 2 mr1/2 (1. 6) By integrating (1. 6) over all the planets we find that while the...

Ngày tải lên: 04/12/2015, 00:25

... all of opposite sign than those of the main field This indicates a weakening of the dipole field From the numbers in CHAPTER THE MAGNETIC FIELD OF THE EARTH 98 Table 7.1 of Stacey and eq (3. 43) ... solution of the vector diffusion equation is z z H = H0 e− δ ei(ωt− δ ) (3. 65) CHAPTER THE MAGNETIC FIELD OF THE EARTH 104 with δ= ωσµ0 (3. 66) the sk...

Ngày tải lên: 04/12/2015, 00:25

... (2. 48) g(λ) = = = = GM sin2 λ − (1 + 2f sin2 λ) − 3J2 − m(1 − sin2 λ) a 2 GM (1 + J2 − m) + 2f − J2 + m sin2 λ a 2 2f − (9 /2) J2 + m GM (1 + J2 − m) + sin2 λ a2 + (3 /2) J2 − m GM (2. 53) (1 + J2 ... sin2 λ g = GM 3GJ2 M a2 − a2 (1 − f sin2 λ )2 a4 (1 − f sin2 λ)4 − aω (1 − f sin2 λ) cos2 λ sin2 λ − 2 (2. 52) 2. 2 GRAVITATIONAL POTENTIAL DUE TO NEARLY SPHERICAL BODY49 or, with th...

Ngày tải lên: 04/12/2015, 00:25

... Explain the goal of the firm, corporate governance, the role of ethics and the agency issue  Understand the financial institutions and markets and the role they play in managerial finance  Discuss ... 97 814 42 518 193/ Gitman et al / Principles of Managerial Finance / 6th edition Finance and Business  Strengths of the basic legal forms of busi...

Ngày tải lên: 16/12/2013, 14:45

... Edition, Feb 6, 2005 21. 6 Silberschatz, Galvin and Gagne ©2005 The Linux System Linux uses many tools developed as part of Berkeley’s BSD operating system, MIT’s X Window System, and the Free Software ... loads the system libraries into memory only once Operating System Concepts – 7th Edition, Feb 6, 2005 21. 46 Silberschatz, Galvin and Gagne ©2005 File Systems To the u...

Ngày tải lên: 13/05/2014, 00:36

... of the user-mode system software The environment-variable mechanism provides a customization of the operating system that can be set on a per-process basis, rather than being configured for the ... copy-on-write) The kernel creates a new virtual address space When a process runs a new program with the exec system call Upon creation of a new process by the fork system c...

Ngày tải lên: 28/06/2014, 02:20

... using Eq 4. 49 and Eq 4. 38, Eq 4. 50 (the equation of motion) becomes : ω2Φ = ω Ψ = −α2 ∇ · u −β ∇ × u We thus easily get : (4. 51) (4. 52) CHAPTER SEISMOLOGY 152 (A) (B) Figure by MIT OCW Figure 4. 3: ... rotational component of the displacement field by comparing Eq 4. 36 and 4. 42 It is often much easier to solve the wave equations (4. 41) and (4. 43) than to solve the equation o...

Ngày tải lên: 04/12/2015, 00:25

... change in volume dρ (5. 53) Substitution of (5. 52) and (5. 53) in (5. 51) and using (5. 48) gives the AdamsWilliamson equation: dρ =− dr � ρ κS � ρGm(r) ρGm(r) =− r2 Φr2 (5. 54) 5. 6 THE UPPER MANTLE ... −k (5. 14) with ∂ erf(η) ∂η = ∂ √ ∂η π �η ∂ √ π ∂η �η e−u du = 2 e−u du = √ e−η π (5. 15) so that q = −k (Tm − Ts ) −η2 √ e πκt (5. 16) 204 CHAPTER Age (Ma) GEODYNAMICS 100 Depth (km) 3...

Ngày tải lên: 04/12/2015, 00:25

... about the solar system all the time At this moment space missions and astronomical observatories are further exploring the planets, moons, dwarf planets, comets, and asteroids of our solar system ... accept the Ptolemaic system of circles and spheres as true, the system can be used to predict the paths of the planets across the night sky pretty well Maybe this ex...

Ngày tải lên: 01/04/2014, 20:21

... DIRECTOR Scientific American, Inc 415 Madison Avenue • New York, NY 1 001 7-1 111 (212) 75 4-0 550 PRINTED IN U.S.A Scientific American January 1998 Copyright 1997 Scientific American, Inc LETTERS TO THE ... of a tiny needle They also tested the glucose levels in these volunteers by the finger-stick method They found that both the skin-fluid sample and the finger-s...

Ngày tải lên: 12/05/2014, 15:33

... 2003 contents SCIENTIFIC AMERICAN Volume 13 Number New Light on the Solar System Letter from the Editor The Paradox of the Sun’s Hot Corona By BHOLA N DWIVEDI AND KENNETH J H PHILLIPS The ... “Mercury -light can become a greater threat than the direct sun itself Despite all the challenges, NASA received one SCIENTIFIC AMERICAN NEW LIGHT ON THE SOLA...

Ngày tải lên: 12/05/2014, 16:27

... to the ether would alter the time of the double passage by a quantity depending on the square of the ratio of the earth's velocity to that of light, and this is quite of position of stars, in the ... JE the distance of Jupiter from the earth and I the if V is the longitude and \ the latitude of the direction in which the sun is moving through ethe...

Ngày tải lên: 04/06/2014, 12:23

... Chapter 1: Introduction What Operating Systems Do Computer -System Organization Computer -System Architecture Operating- System Structure Operating- System Operations Process ... system Loads operating system kernel and starts execution Operating System Concepts – 7th Edition, Jan 12, 2005 1.9 Silberschatz, Galvin and Gagne ©2005 Computer System Organization Co...

Ngày tải lên: 28/06/2014, 02:20