2cm
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I disagree.... 1 cm at the most.
a thumb tack is about 2 centimeters long.
thumb tack already is an English word.
Thumb tack sinks in water and floats in mercury.
Pull it out.
thumb nail, thumb tack, thumb screw, thumb print
No, a thumb tack is not an inclined plane simple machine. An inclined plane is a flat surface that is tilted, like a ramp, that allows objects to be raised or lowered with less force. A thumb tack is a fastener that uses a sharp point to pierce through materials.
it made of cut nails
a thumb tack
Take it to the vet now. That thumb tack can poke or rip holes in your cats organs or get stuck in an organ causing a serious infection.
Thumb tack
They are the same thing.
It would be millimetres.