Consider a 2-dimensional surface with (r1,a2) = (0,ø) (the usual spherical polar angles) and metric ds2 rdo2? sin20 dd2, where ro> 0 is a constant. you are given that the only non-zero christoffel symbols are гу — га 2 2 1 cot 0 cos 0 г. - sin 12 21 22 (a) prove that if a contravariant vector a' undergoes parallel transport around the circle -п/4 from ф %—o to ф%3d 2т аnd a' — 0, a? 3d 1 at ф 3 0, then at ф — 2т we have acos(2t) sin(27) 2 a (b) show that the components ri1, r22 of the ricci tensor are r11 1 r22 -sin20 find r, the ricci scalar

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

a is the best answer your welcome

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over