CBSE Class 12-science Answered
You inflate the front tires on your car to 28 psi. Later, you measure your blood pressure, obtaining a reading of 120/80, the readings being in mm Hg. In metric countries (which is to say, most of the world), these pressures are customarily reported in kilopascals (kPa). In kilopascals, what are (a) your tire pressure and (b) your blood pressure?
Asked by Jayesh.Hari | 26 Feb, 2015, 06:24: PM
Expert Answer
Hi Jayesh,
(a) 1 psi = 6.9 kPa
So, 28 psi = 193.2 kPa
(b) 1 kPa = 7.5 mm Hg
So, 120 mm Hg = 120/7.5 = 16 kPa
And 80 mm Hg = 80/7.5 = 10.7 kPa
Answered by | 26 Feb, 2015, 06:36: PM
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