Acrane lifts a 100-kg log at a height of 10 meters above the ground and gains a certain amount of potential energy. how much potential energy would it possess if it is lowered 5 meters below?

a. the same potential energy
b. half as much potential energy
c. twice as much potential energy
d. four times as much potential energy

Most crimes involve some evidence relating to the human body; for that reason, what related science is frequently used in forensic investigations? a)psychiatry b)physics c)botany d)biology

Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.