Tuesday
May 21, 2013

Posts by marc


Total # Posts: 84

Mechanics:Statics
Two 10 kg spheres are placed 500mm apart. Express the gravitational attraction acting on one of the spheres as a percentage to its weight on earth.

Mechanics:Statics
A man weighs 900N on the surface of the earth. Compare his weight in an airplane flying at an elevation of 9000m. Note that the radius of Earth is 6378km.

8th grade science
Good hypothesis for does the human tongue have definite areas for certain tastes

science
Does the human tongue have definite areas for certain tastes

math
First estimate,then multiply to get the exact answer. 6 2/3 X 3 4/11 X 5

Physics
An 80 kg man climbs a 50 m-high hill in 20 minutes. What is the average power in watts he expends climbing the hill?

Physics
The weight of a rock on the moon is 0.85 N. If acceleration due to gravity on the moon is 1.7 m/s2, what will be its weight on the earth

science
make a graphic organizer to show ways how ways to cause physical changes to a piece of paper

math
there are 45 children in a class.if there are 3 more girls than boys,how many are girls?

math
i am a three digit number.if you subtract 419 from me the remainder is 126.what number am i?

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