Because some cars have bigger engines some have all aluminum engines some have solid axles in the rear vs independent rear some have steel rims some have aluminum rims some hold more gallons of gas then others some hold more oil.
JUPITER
Trucks are heavier and tend to carry more.
genes
Older cars are heavier than new cars and often survive wrecks because of their bulk. However newer cars have more safety technology to protect them.
trucks are much heavier than cars and also have much bigger engines resulting in more fuel being burned
some atoms are heavier than others as they have higher relative Atomic Mass, by which is equals to proton number + number of neutrons in an atom, according to the Periodic Table of the elements
Some may be may be heavier and have more mass than others.
Some may be may be heavier and have more mass than others.
yes they are
because there from different trees and some trees are heavier also if they are made out of metal it is the amount of metal they put in it.
Helium exists as a monatomic gas, with atomic mass of 4.0. Thus any gas with a molecular mass higher than 4.0 would be heavier than helium. Hydrogen is the only gas that is lighter than helium; all others are heavier than helium.
A rhino is not heavier than a car as an average rhino weighs about 1.5 tones. Some cars are way much heavier than this and very few would weigh less than a rhino.