 鲜花( 2)  鸡蛋( 0)
|
知道地球磁场的single dipole moment Mx, Mz,My如何求 相交的位置
8 g( {8 ~; P" a/ Z, P6 C) {1 h3 r3 f" j9 R/ `8 Z* W
$ @# {. P) I: }: K
% H! ?3 K0 S! O1 [5 X' |0 [" b2 T
(2) The Earth’s main magnetic field at the surface (radius = 6371 km) can be approximated by a single dipole moment at the Earth's centre with the following (x,y,z) components:3 |7 r. i! k) ?) ^# S, J
9 E3 ?, h: v0 a$ o: n j
mz = -7.7 x 1022 A m2, mx = -0.479 x 1022 A m2, my = 1.399 x 1022 A m2.8 Z& S7 `. \8 @% Y" C
! F( n3 i' B* F! m2 Z' O) F9 S8 N b
Calculate the location (latitude, longitude) where the axis of this dipole field intersects the Earth's surface (i.e. where the magnetic field is locally purely vertical and upward)." e; S1 Z5 {/ k2 T5 P% h0 i
|
|
狗仔卡
发表于 2012-4-2 21:27
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡