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  • Signing up a two year contract for a family plan, how many phones are discounted?

    When getting a phone, the prices are usually reduced when signing up for a contract. We'd need four phones. Does only the first phone receive this discount and you'd have to play full price for the others?

    2 AnswersCell Phones & Plans1 decade ago

  • Gas Chromatography - Toluene?

    Why do ten molecules of toluene that enter a GC column at exactly the same time not reach the detector at the same time?

    1 AnswerChemistry1 decade ago

  • Acceleration due to Gravity?

    A space shuttle is flying at an altitude of 12.000 km above the Earth. A satellite in its cargo bay is floating freely and its engines are about to boost it to a higher orbit. What is the acceleration due to gravity on the satellite? The radius of the Earth is 6370 km. The mass of the Earth is 5.980×1024 kg. Enter you answer with an accuracy of 0.01%.

    This is what I've figured out:

    g = GM/r^2 in which r is the radius of the earth plus my distance 12 km so that I get g =((5.98e24)(6.674e-11))/((6370 +12)*1000)^2

    This isn't working for me, I get 9.79882, I've tried many versions of this. Any suggestions where I'm going wrong?

    1 AnswerPhysics1 decade ago