You are the science officer on a visit to a distant solar system. prior to landing on a planet you measure its diameter to be 1.8×107m and its rotation period to be 22.3 hours . you have previously determined that the planet orbits 2.2×1011m from its star with a period of 397 earth days. once on the surface you find that the free-fall acceleration is 12.2m/s2. what is the mass of the planet?

what is the mass of the star?

double the distance = divide strength by 4

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach