Living organisms all have dna and rna which are both
a. carbohydrates
b. lipids
c. proteins
d. nucleic acids

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.