The space shuttle starts at rest and must reach a velocity of +10,000 m/s (22,000 miles/hour). The acceleration of the space shuttle is +50 m/s^2. How long (in seconds) does it take to reach this acceleration? How many minutes is this?

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).