Consider the following two values for measurements of length:
L1 = 0.0035600 km
L2 = 136500 mm
(a) How many significant figures does each have?
(b) Express each number in proper scientific notation after converting the units to “meters”
(c) Which of the two is more accurate?
(d) Which of the two is more precise?

Respuesta :

We have that

a)  L1 = 0.0035600 km  = We have this number has 5 significant figures

    L2 = 136500 mm =We have this number has 3 significant figures

b) L1 = 0.0035600 km=3.65m

   L2 = 136500 mm=136.5m

c)  L1 is more accurate

d) L2 is more Precise

From the question we are told

Consider the following two values for measurements of length:

L1 = 0.0035600 km

L2 = 136500 mm

a)

Generally

L1 = 0.0035600 km  = We have this number has 5 significant figures

L2 = 136500 mm =We have this number has 3 significant figures

b)

Express each number in proper scientific notation after converting the units to “meters”

L1 = 0.0035600 km=3.65m

L2 = 136500 mm=136.5m

c)

Which of the two is more accurate

Generally

We define accuracy in measurement as the closes of a value measured to the actual value of

Therefore

L_1 is more accurate

d)

We define Precision in measurement as how closely the reoccurring results are close

Therefore

L_2 is more Precise

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