Which choice is the best description of density? Objects with high density weigh much more and take up more space than those with low density. Objects with high density have tightly packed molecules but the molecules in less dense objects are all spread out. Objects with less density have tightly packed molecules but the molecules in highly dense objects are all spread out. Objects with low density weigh much more and take up more space than those with high density.

 B:Objects with high density have tightly packed molecules but the molecules in less dense objects are all spread out.

Explanation:

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question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)