Q.1. Convert the following: ( given 1m = 3.281 ft and 1 mi = 5280 ft) i) [1/2] 2

Question

Q.1. Convert the following: ( given 1m = 3.281 ft and 1 mi = 5280 ft)

i) [1/2] 25 mm to meters:
A) 0.25 m B) 2.5 m C) 25.0x10-2 m D) 2.5x10-2 m


ii)[1/2] 25 cm2 to m2 :
A) 0.025 m2 B) 0.0025 m2 C) 2.5x10-4 m2 D) 0.25x10-6 m2


iii)[1/2] 35 ns to seconds:
A) 3.5x10-8 s B) 35x10-8 s C) 0 .35x10-8 s D) 35x10-8 s


iv)[1/2] Convert 3212 ft to m:
A) 978.97 m B) 97.9 m C) 9789.7 m D) 9.789 m


v)[1/2] Convert 50 mi/hr to km/hr ----
A) 8.46 km/hr B) 804. 6 km/hr C) 80.46 m/hr D) 80.46 km/hr


vi)[1/2] Blood in the human aorta can attain speeds of 35.0 cm/s. How fast is this in km/hr ?
A)12.6 km/hr B) 6.3 km /hr C) 1.26 km/hr D) 3.25 km/hr

Explanation / Answer

i) 1 mm=10^-3m so 25mm = 25*10^-3m = D) 2.5x10-2 m ii)1 cm^2 = 10^-4m^2, so 25cm^2 = 2510^-4 m^2 = B) 0.0025 m2 iii) 1ns = 10^-9 sec A) 3.5x10-8 s iv)1 ft = 0.3048m A) 978.97 m v)1 mi/hr = 1.6093 km/hr D) 80.46 km/hr vi)1 cm/s = 0.036 km/hr C) 1.26 km/hr

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