3,4一写过程

2024-03-16 04:19

2024-03-16 04:33

3.由F=GMm/r^2

=6.67x10^-11x1.97x10^30x5.98x10^24/(1.49x10^11)^2=3.54x10^22N

F0/s0=F/S

S=5.3X10^18cm^2=5.3X10^14m^2

4.由F=GMm/r^2

=6.67x10^-11x(7.1x10^-30)^2/(1x10^-16)^2=3.36x10^-37N

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