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.
It's true - the ISS moves at about 17,000 mph (~28,000 kph). Now for your other questions: 1. When it's not using its onboard engines to adjust its orbit, the station is in free-fall*. This means that gravitational interaction with the earth maintains the station's orbit, and thus its speed.
I'm asking because I was reading about the new planet, Gliese 581, which is said to have earth like habitation characteristics, but is 20.5 lightyears away-- impossible to reach in a human lifetime. So I would like to know how fast our space shuttles go...eport Abuse. Well, the space shuttle normally cruises along at 17,000 mph. At that speed, assuming a straight line shot to Gliese 581, it would take 810,502 years to get there. If we go back to the velocity of the Apollo missions to the moon (..about 45,000 mph..) we're down to a one-way trip of 305,706 years.