Having been heated to 800 k , at some point the tank starts to leak. by the time the leak is repaired, the tank contains only half as much gas, and the pressure of the remaining gas is again 1.00 atm . what is the temperature of the gas?

Determine the time it takes for a satellite to orbit the earth in a circular "near-earth" orbit. the definition of "near-earth" orbit is one which is at a height above the surface of the earth which is small compared to the radius of the earth, so that you may take the acceleration due to gravity as essentially the same as that on the surface. does your result depend on the mass of the satellite?