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-2 votes
2 answers
75 views

How much at least should the Earth be smaller so that we notice these three phenomenons?

The Earth is moving with a speed of about $1670$ $km/h$ around its axis. This speed is more than the sound speed. So the Earth is always breaking the speed of the sound. How much at least should the ...
Snack Exchange's user avatar
2 votes
1 answer
413 views

The speed of throwing an object horizontally such that it is in orbit around the Earth [closed]

The question is given that for every 3,570 meters you walk , the Earth curves downward by 1 meter. The time it takes an object to fall from a height h is t = sqrt(2h/g), where t is in seconds, h is ...
musicbear's user avatar
-5 votes
1 answer
189 views

From where we can view earth moving?

Earth moves with a speed around $100000 \,\,km/h$, which will be amazing, but from where we can see that moving speed? If we far away from earth (outside of earth gravity) then can view its moving? is ...
user1844933's user avatar
-1 votes
1 answer
2k views

Calculation of 12000 Lunar Orbits/Earth Day [closed]

I am really interested in the calculation of the following speed value in meter-per-second unit: Speed of something that is able to travel in one earth day the distance that it would take for the ...
charfeddine.ahmed's user avatar