Determine the distance between centers of two planets whose masses are 1.1 x 10^24 kg and 1.4 x 10^21 kg and the force of gravity that one
planet feels due to the other is 2.2 x 10^20 Newtons. *

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.

Assuming you're referring to significant figures, none of these answer choices are shown to be zero as significant digits. did you, by chance, forget to add something?