Nowadays, steel but it was more common in the past to be iron.
Nowadays, steel but it was more common in the past to be iron.
Yes, thumbtack is a compound word made up of 'thumb' and 'tack'.
Yes, thumbtack is a compound word made up of 'thumb' and 'tack'.
A banana has the greater mass of the two, unless the thumbtack is made of something extremely dense, like neutronium.
thickness of a thumbtack
There are no perfect rhymes for the word thumbtack.
A thumbtack is a small metal object that consists of a parabola with a short, pointy metal spike protruding from its vertex. It is used to temporarily affix paper to an appropriate surface, especially a bulletin board. It recent years, its popularity has waned and it has largely been replaced by pushpins, which are similar objects with a different shape that use more plastic than metal.
"GOSH! I hurt my finger on a THUMBTACK !"
Thumbtack - website - was created in 2008.
I used a Thumbtack to pin something on the board.
Huh, can't you float a thumbtack in water? If it sinks, it means that the amount of water displaced weighs less than the tack.
The pressure on your thumb can be calculated by dividing the force (25N) by the area of the thumbtack head in contact with your thumb. The area can be found using the formula for the area of a circle, A = πr^2, where r is the radius (5mm). Therefore, the pressure on your thumb is 25N / (π * (5mm)^2) = 1N/mm^2, or 1 MPa.