[填空题]
Estimate the kinetic h(x3 imgn8rb 6energy of the Earth with respei(yl)2bzsh3m ay 2 kk+ct to the Sun as the sum of two termy+azhml2kk) y(2 b3i ss, (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
