Friday
December 19, 2014

Posts by Hoa


Total # Posts: 5

English
Rewrite the following sentencesto make them effective and precise. 1. The newspaper reported about how the hostages in Jolo were rescued. The newspaper reported about the hostages' rescue. 2. In actual fact, he posed as a policeman to extort money from the old lady. He ...
July 20, 2011

English
Corrct the 10 mistakes found in the paragraph. You may have notice this plant Aloe barbadensis in your garden or neighbourhood,but may have not realise its medicinal property. (corrct noticed, realised, capitalise B in Barbadensis) It is used to cure many ailment (ailments) ...
July 20, 2011

Physics
In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016 and a radius of 8.50km . What is the speed of a satellite orbiting 4.70km above the surface? What is the escape speed from the asteroid?
April 7, 2010

Physics
Mars rotates on its axis once every 24.8 hours. What is the altitude of a geosynchronous satellite orbiting Mars. I have the speed of geosynchronous orbiting Mars. But I cant find the altitude of a geosynchronous satellite orbiting Mars.
April 6, 2010

MATH
i dont know
June 18, 2008

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