the answer is 40.5 because you have to multiply the density and volume of the object to get the mass.
The answer is A. Mass is constant, height and width won’t change. So that leaves weight.
Polyester are commonly made up of an organic alcohol that contains a hydroloxyl and a carboxylic acid which contains a carboxyl. polyester is a class of synthetic polymers built up from multiple chemical repeating units linked together by ester groups. it also displays a wide array of properties and practical applications.
E =mc²
= (5.0-kg)(3 x 10^8 m/s)²
= (5.0-kg) (9×10^16m²/s²)
E =4.5×10^17 J
Energy can be transferred but cannot be destroyed.
