[填空题]
Estimate the kinetic energy of the Earth with 3ucio*bz k (5o:ro2horespecu he 4y(.kvo5rx msrwe/g/ 1d+t to the Sun as the sum of two te(krru o4w +.eyex/5s1mv /gdhrms, (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
Post time 2025-2-18 20:00:22
