So far as I know, only one. USMC Men serve in 4 year tours and one hash mark is given for each tour of duty, so one.
The 50cm mark isn't necessarily the ruler's centre of mass where it will balance. If the ruler is not uniform (i.e. it has a hole in it) its centre of mass will not be exactly in the middle.
To indicate that angles are congruent, matching angle marks such as arcs or hash marks are typically used. For angles formed by lines AB and CD, you would place the same number of arcs or hash marks in each angle that you want to show as congruent. For example, if angles ∠1 and ∠2 are congruent, you might place one arc in both angles to signify their equality.
In relation to jewellery - it's the purity of the gold (14k) the 'ar' mark probably identifies the manufacturer.
An Indian head nickel that is 24 karat gold layered, with no date, mint mark, and has been circulated is worth between $0.05 and $0.30 (as of 2013). Although they are rare, they are not worth a lot of money.
Gold has marks and gold chevrons on a Navy enlisted uniform indictates the sailor has achieved 12 consecutive years of active service with Good Conduct. Each hash mark indicates 4 years of active service.
Hash Marks represent four-year of service.
What is the most hasmarks ever given out to one person?
a hash mark looks like this...#
Hash marks on a police uniform are typically placed on the lower part of the uniform sleeve, usually centered between the elbow and the shoulder. These marks are used to signify years of service in increments of five or ten years. The specific placement can vary slightly depending on the department's uniform regulations, but they are generally positioned in a visible and standardized location for easy recognition and identification.
Hash or hash mark.
Each stripe designates an amount of service in years for the Marines and Navy. Look at a ruler and you will see hash marks. Each hash mark indicates a length. Thus the term hash mark for length of service.
no
The ball is placed at the position of the ball when the player is downed. If that position is not between the hash marks it will be moved to the nearest hash.
It is # (hash-mark).
Concentrated "essence of cannabis". Hash (or hashish) in my language (Arabic) means grass.... grass is another word pot, weed, marijuana, cannabis. It also can be the mark #. #=hash.
One