1. It is common practice in some places for people to express their weight (whic

Question

1. It is common practice in some places for people to express their weight (which is the force of gravity on them) in kg. Explain what is technically wrong with this practice. 2. In everyday life, we frequently encounter phrases such as he store is 15 minutes away"even though time is not a measure of distance. Explain how we make sense of such a statement. 3. In astronomy, a parsec ( pc) is dened as the distance at which an object with a size of 1 astro- nomical unit (AU) would subtend an angle of 1 arc-second. Find the conversion factor between parsecs and astronomical units.

Explanation / Answer

it is technically wrong they say it as 60kg weight but actually it should be 60kg mass beacuse the unit of weight is Newton not kg whereas kg is unit of mass we say 15 minutes away we can make sense of such statements by saying it takes a person 15 minutes when the person travels with average walking speed

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