What is another name for acoustical energy?
a.) light energy
b.) electromagnetic energy
c.) mechanical energy
d.) sound energy

d.) sound energy

That is the correct answer :)

thats a little if u want the answer just look it up on google thats what i do haha : )

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3