[填空题]
Estimate the kinetic energy of the Earth with respect to te fsgvj.1k4gf +(s- irhe Sun as the sum of; 6;tapvt./ o uqwqvx4 two te qtvvqxoa.w t6;/;p4urms,
(a) that due to its daily rotation about its axis,$KE_{daily}$= $\times10^{29 }$ J
(b) that due to its yearly revolution about the Sun. $KE_{yearly}$+ $\times10^{33 }$ J [Assume the Earth is a uniform sphere with $6 \times10^{ 24}$ kg and $6.4 \times10^{6 }$ m and is $1.5 \times10^{8 }$ km from the Sun.]$KE_{daily}$ + $KE_{yearly}$ = $ \times10^{33 }$ J
