duckly wrote in message news:*** Email address is removed for privacy *** .com... Can I install Microsoft Office 2010 on both my desktop PC and my laptop if they both belong to me? plan to buy a PC next January. Can I buy the 2010 Office business version (which permits 2 activations-on my primary PC and my laptop) and install it first on my new laptop and later install it on my primary PC after I buy it next Jan? In other words, does it matter what sequence I install the software?
Confidence votes 12. If an Earth-like planet was orbiting at the same distance from its double solar mass star as the Earth is from the Sun (1 astronomical unit, written 1 AU), then the force would be double that experienced by the Earth.he force at constant distance is just proportional to the product of stellar and planetary masses. We don't know of any reason why an Earth mass planet should not form at 1 AU from a star of 2X Solar mass, though we as yet have few observational measurements of such low mass extra-solar planets.
The law of conservation of energy. In this case the orbital velocity sets the kinetic energy and the gravitational effect of the sun provides the potential energy. A decrease in one requires an increase of the other. Thus as the path of the earth causes it to reduce its distance, the velocity increases to take the released potential energy. Another way to express the same underlying phenomenon is that the pull of gravity from the sun must equal the centripetal force needed to hold it in its orbital path.