An inclined plane decreases effort force by increasing what .

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force

How are students who take the writing portion of accuplacer graded?

Dna is a polymer of which consist of a sugar, a phosphate group, and a a. amino acids; nucleotide b. nucleic acids; nucleotide c. nucleotides; nitrogenous base d. nucleotides; nucleic acid e. proteins; nucleotide