Why is it possible to have a quantity without having a dimension?
Answers
Answer:
a unit, by definition, is a fixed quantity having the dimension that all other quantities of the same dimension are compared to. The only way to have a dimensionless number in physics is to consider a ratio of two magnitudes of the same quantity. However, such ratio will not have a unit.
Explanation:
Your Answer
Brainlist
Answer:A dimension is one of the four fundamental physical quantities:
mass, measured in grams (CGS system) or kilograms (MKS system)
length, measured in centimeters (CGS) or meters (MKS)
charge, measured in coulombs
time, measured in seconds
(CGS, or centimeter-gram-second, is used in chemistry and biology, generally speaking, while MKS, or meter-kilogram-second, is used in physics, generally speaking.)
A unit is a dimension, or the product of one or more dimensions or their multiplicative inverse.
The unit of time is the second (s).
The unit of acceleration in MKS is meters per second per second, written as ms2 , or m⋅s−2 .
The unit of energy in MKS is the joule, which is equivalent to kilogram meters squared per second squared, or kg⋅m2s2 or kg⋅m2⋅s−2 . In CGS, it is the erg, g⋅cm2⋅s−2 .
Explanation: