Because we observe and work with such a huge range of speeds ... from the motion of tectonic plates
at around 0.4 inch per year, to the speed of light at around 300,000 kilometers per second (about 1 foot
per nanosecond ... another new unit forspeed).
The purpose of having a lot of different units for the same quantity is so that whether you're observing
a tiny version or a gigantic version of that quantity, you can always find a unit that gives you a convenient
number ... a number that's easy to write down, remember, and tell other people about.
If the only unit we had for speed was my walking speed ... call it 'W' ... then the typical motion of
a tectonic plate would be something like 0.0.000000000473 W , and the speed of light would be
something like 223,539,000 W . . . neither of those numbers particularly easy to handle. People
a long time ago would have invented the nano-W, the micro-W, and the giga-w, to cover the
enormous ranges of speeds that are completely outside of our daily experience with things
walking, driving, flying, or swimming across the face of the Earth.
They are different types of units so there is no answer.
There is so many units and times because when we use time we can use units.
These are two different units of measure. Kilometers are distance, and ounces are for weight. So, officially the answer is none.
Meters and liters are different units of measure that do not convert, so the question is unanswerable.
Yes, many different kinds--from R2 units and protocol units to various mechanical and administrative droids as well as reconnaissance and military droids.
Convert one of the units so that they're both the same unit.
You would have to address that query to Trane. -I see many different air conditioners in mobiles, roof units, window units and outside ground based units, so obviously many AC's are approved.
No. Measurement units are defined by and conversely. So the same units necessarily means same dimensions.
Both these units gms and mm belong to different categories .So, gm cannot be converted to mm.
Garmin makes many different GPS units, so it would depend on which one specifically you are looking at. In general though, Garmin GPS units typically have average ratings on Consumer Reports.
There are so many units for measuring volume that are commonly used. Some of these units include litres, pints, gallons and so much more.