In order to understand why some combinations of alkyl halides and nucleophiles give a substitution reaction, whereas other combinations give elimination, and still others give no observable reaction, we must investigate systematically the way in which changes in reaction variables perturb the course of the reaction.
The altitude of the ISS varies day to day; periodically, they 'boost' it's altitude with either on-board engines, or make use of one of the PROGRESS ferry modules or even the Shuttle's engines. It's altitude varies from 319.6 km to 346.9 km above the surface of the Earth (approximately 199 miles to 215 miles). It travels at an average speed of 27,744 km (17,240 miles) per hour, completing 15.7 orbits per day. quantumclaustrophobe Â· 9 years ago.
It takes 2 days. You might think that that's a long time for a space shuttle to go to the space station. Especially when you know that it takes about 2 minutes for the space sâ¦huttle to go into space. But here's why: The space station is orbiting the earth, and so will the space shuttle when it goes into space.