Planet x rotates in the same manner as the earth, around an axis through its north and south poles, and is perfectly spherical. an astronaut who weights 943.0n on the earth weights 915.0n at the north pole of planet x and 850.0n at its equator. the distance from the north pole to the equator is 18,850 km., measured along the surface of planet x.

(a) how long is the day on planet x?
(b) if a 45, 000kg satellite is placed in a circular orbit 2000km above the surface of planet x, what will be its orbital period.

Work = force × a. work b. energy c. distance d. momentum

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2