Questions tagged [unit]
36 questions
10
votes
7 answers
Forgotten time units
As my kids are counting down to Christmas, I came to wonder how did people measure time through history. More precisely I wonder about unit systems for precision time keeping of years past gone.
I am wondering this, because the other two most…
NMech
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units check for horsepower to weight (Hp/W)
is this units breakdown correct:
Hp/W= (ftlb/s) / (lbft/s^-2) = s^-1?
I think I might made mistake?
Mags
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2 answers
Convert from RPM to per second
Is this correct please for my conversion from RPM to per second? I've included my working below:
(500 / 60) * 2 * π = 500 rpm to just s-1.
Herbert
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How do I denote someone weight
How do I say my weight? In which SI units? I see people are using Kg as a unit of denoting weight from my childhood. Answer this question "What's your weight?".
Antony Edison
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Unit of blower speed
I want to know whether the international unit of blower speed is RPM or r/min. I konw ther're the same, but I'm not sure which one is more prevailing internationally. Thanks for answering.
LJ GONG
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