Why is it called a building if its already built

Engineering

2 answers:

dsp733 years ago

3 0

Answer:

We often add ing to a verb to name the thing created by the action of the verb. It's added to some verbs to make them nouns. You paint and create a painting. You carve and create a carving. You draw and create a drawing, and you build and create a building.

Explanation:

I hope this helped :)

tatuchka [14]3 years ago

3 0

It’s called a building because the 'ing' in the English language is added to certain verbs to make them nouns.
The verb 'built' is suffixed with 'ing' to make the thing a noun- Building.

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Answer:

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Explanation:

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DiKsa [7]

Answer:

The answer is below

Explanation:

1) The synchronous speed of an induction motor is the speed of the magnetic field of the stator. It is given by:

$n_s=\frac{120f_s}{p}\\ Where\ p\ is \ the \ number\ of\ machine\ pole, f_s\ is\ the\ supply \ frequency\\and\ n_s\ is \ the \ synchronous\ speed(speed \ of\ stator\ magnetic \ field)\\Given: f_s=60\ Hz, p=4. Therefore\\\\n_s=\frac{120*60}{4}=1800\ rpm$

2) The speed of the rotor is the motor speed. The slip is given by:

$Slip=\frac{n_s-n_m}{n_s}. \\ n_m\ is\ the \ motor\ speed(rotor\ speed)\\Slip = 0.05, n_s= 1800\ rpm\\ \\0.05=\frac{1800-n_m}{1800}\\\\ 1800-n_m=90\\\\n_m=1800-90=1710\ rpm$