Who are currently operating the international space station? a. soviet cosmonauts b. a cooperative team of scientists from 16 countries c. american astronauts d. a cooperative team of scientists from russia and the united states

The air that we breath is made mostly of which gaseous molecule

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.