Speed or velocity can be expressed as the distance divided by time.
-- The distance that light travels in some amount of time is expressed in units of distance. -- The time that it takes light to cover some amount of distance is expressed in units of time. -- The speed of light is expressed in units of speed . . . distance/time
Love is expressed in Spain the same way it is expressed all over the world, in words and actions.
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Mass is not expressed in kilometers (km). That is a measure of distance. Mass is expressed in units of kilograms (kg)
It can be expressed in that form or as its reciprocal.
Wavelength (Apex)
It depends on the type of love. Familial love is usually expressed with cheek-kisses and hugs. Romantic love is usually expressed through hand-holding and french kissing.
Love is expressed in America in hundreds of different ways. Some examples are, words, affection, letters, cards, poems, and songs.
Love in China is expressed in private. The Chinese do not enjoy public displays of affection. In other countries, such as France, love is expressed in very romantic ways, such as with flowers, and other traditional romantic gestures. In the U.S. it is common to see love expressed publicly. In Spain they express love in similar ways to the U.S., however they are more dramatic in their declarations of love.
Here are some international units of measurement:Mass is expressed in kilograms.Length and distance is expressed in meters.Time is expressed in seconds.Electrical current is expressed in amperes.Speed is expressed in meters/second.
The same way its expressed in the U.S. the UK and the largest part of the world.