[填空题]
Estimate the kinetic energy of the Earth wimo)ufmvk:4 0cp 8 da*tth respecuni oszk*; ae9brh s+o 0 )n/fzi)0je,t to the Sun as the sum of two tosn+ r z, sie*zbh0i0;k)eo )n9/au fjerms, (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
