My foot is actually about 1 foot long!
A water bottle
In therory, infinitely long. In practice, the shadow will fade into dispersed light.
[object Object]
A long time ago a king wanted to see how long his foot was. His foot was exactly 12 feet long so he called that a foot.
A five dollar "foot long sub" and a ruler
12 inches
a 4 foot long person
a 12-inch ruler
30cm is about 12 inches or 1 foot in length
a lamp
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scale
To measure a foot length you could use a ruler, a yard stick, a tape measure, or any object that you knew was precisely one foot long on a side or edge.
In therory, infinitely long. In practice, the shadow will fade into dispersed light.
[object Object]
long A
An object will have more potential energy at the top of a 100 foot hill. Gravitational potential energy is directly proportional to height.
Three meter sticks glued together lol idk go on google or somethingA ten-foot pole?