How fast would a piece of rock need to be blasted outward from the surface of Mars to escape into space as a meteoroid?
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- Calculate the escape velocity of Titan.Enceladus is a moon of Saturn. What unique feature does it possess? which is the correct answer? Cryovolcanism, where water erupts instead of silicate rock A dense system of rings An atmosphere thicker than Earth's Internal heating due to radioactivity Has an orbit inside Saturn's ringsHow about the real Moon orbiting an Earth that kept its present size but were made of liquid water (1.0 g/cm3)? (Give your answer in terms of REarth.)
- The Moon's mass is 1/80 that of Earth, and the lunar radius is 1/4 Earth's radius. Based on these figures, calculate the total weight on the Moon of a 100-kg astronaut with a 50-kg space- suit and backpack, relative to his or her weight on Earth.Why is Mars red?I have provided table 10-1 for mercury
- The material ejected from the surface of asteroid would have a significant momentum. Since asteroid and all its material is _____, the ejection would cause _____ change in momentum of the asteroid, according to the ____. The ejected material is analogous to _____, and the asteroid is analogous to ____. Fill in the blank -oppositely directed -law of conservation of energy -gases expelled from a rocket -an isolated system -a rocket -law of conservation of momentum -perpendicularly directedAssume that a planet will have lost its initial atmosphere by the present time if the average molecular speed exceeds one-sixth of the escape speed. What would Mercury's mass have to be in order for it to still have a nitrogen atmosphere? The molecular weight of nitrogen is 28.