Question

What is used to express the magnitude of a physical quantity?
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Answer 1

Answer:

joule I think not confirmed

Answer 2

Explanation:

Magnitude is the amount or number which is written before a unit and is used to express physical quantity. Here, magnitude is 20 and unit is m/s. Here, magnitude is 10 and unit is N(Newton). Here, magnitude is 15 and unit is P(Pascal).

I hope it's helpful