an intergalactic spaceship arrives at a distant planet that rotates on its axis with a period of t. the spaceship enters a geosynchronous orbit at a distance of r.

The answer to the first one is barometer.

Yes, it’s awesome
: )

2pi more meters because you find the circumference which is 6pi and 4pi and subtract it and you get 2pi

"central america is subject to fierce which drop large amounts of on the region. another threat in the region is activity such as earthquakes and volcanoes caused by the shifting of the earth's large waves called may result in mass destruction. frequently crops are wiped out causing in the region." where is the question