A jackhammer is a machine used to break rock. It consists of a chisel that is rhythmically moved upward and downward via an internal motor. "Jackhammer" is also the name of a comic book villain, a Wrestling powerslam, a song, a coitus position, and several people (as a nickname).
yes
'Jackhammer' is the singular form.
My Jackhammer was created in 2002.
The jackhammer is in the Gift Shop!
a jackhammer uses a pneumatic system.the jackhammer is a direct combination of a hammer and a chisel
the word "importance or important" referrs more to the meaning of something, like if if a pictures particular importance. "effectivness or effective" referrs more to the use of something, like a jackhammer's effectivness is high when it comes to breaking up concrete.
your mom made the first jackhammer
the jackhammer isn't in the gift shop
The jackhammer was invented by Charles Brady King
Jackhammer - comics - was created in 1975.
The plural form for the noun jackhammer is jackhammers.
Go to the mine and find the hat and jackhammer on the darkest part