The function of a pointer tells you if you have the correct measurement or not.
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It means a balance (scale) with three beams. Triple. Beam. Balance. Exactly what it says on the tin.
These are weighing instruments that have 3 (triple) scales instead of only 1 which makes them very sensitive and rather accurate. Look up 'Triple Beam Balance' or 'Beam Balance' triple.
A tool that u use to measure the mass of a object
Move both gram weights to zero and balance it out by using the knob.
When the pointer of balance reads zero, it indicates that the forces acting on the object are in equilibrium, with no net force or torque present. This means that the object is balanced and not moving.
Balance may mean many things, the most common is balance as in balance beam. A balance beam is a sick like figure about three feet off the ground. It is used for many gymnastics competitions.
Triple beam balances usually read in .1 gram increments. That's equivalent to 100 milligrams. That doesn't mean that the instrument is actually ACCURATE or CALIBRATED to within .1 grams-- only that the instrument's readability is .1 grams. A poor quality or poorly maintained instrument might not read accurately to the true value of the weighed object's mass. It's possible to buy more precise triple beam balances capable of reading in milligrams (.001g) but they are expensive and more difficult to properly maintain. For this reason, most modern high precision balances are digital.
I think you mean balance beam and yes that would be gymnastics
When the pointer of a balance reads zero, it means that the object being weighed is in equilibrium and its mass is balanced by the counterweights on the other side. This indicates that the object's mass is equal to the counterweights being used.
Assuming you mean one that hangs from a hook, just hang the article and read the pointer on the scale.
Double pointer is a pointer to a pointer. So you can work with the double pointer as you work with a single one.Or you might mean 'pointer to double', eg:void clear_double (double *dp){*dp = 0;}
This pointer can have a lot of reasons so maybe you should ask your parents