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A man is 5 times as old as his son 2 years ago the sum of the squares of their age was 114 find the present age of son?answer is 7? What is the Importance of dna and rna in evolution? 2 spheres of .02 and .04 m are at distance of .14 m with 40C charges each. Whats the force between them? Each edge of a cube has a length of 38.1 cm. What is the length of a diagonal of the cube going through the center of the cube? 2, 2 -diethyl- 4- (2,2 dimethylpropyl) decane ?? The bond line drawing ?