acceleration-gravity
Topic | Replies | Views | Activity | |
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An intergalactic spaceship arrives at a distant planet that rotates on its axis with a period of T 31 hours | 0 | 6156 | March 23, 2018 | |
The deepest point in the ocean is 11 km below sea level, deeper than Mt. Everest is tall | 0 | 6731 | March 22, 2018 |