What are the basis units of length, mass, volume, and temperature in the SI syst

Question

What are the basis units of length, mass, volume, and temperature in the SI system? What decimal power do the following abbreviations represent (a) M, (b) k, (e) m, (d) n, and (e) mu? What is the number of significant figures in each of the following measured quantities: (a) 351 g (b) 0.0100 mL, (e) 1.010 mL, and (d) 3.72 times 10^-3 cm? Perform the following conversions: (a) 72.3 mg to g, (b) 6.0 times 10^-10 m to mm, and (c) mm to mu m. DNA is approximately 2.5 mm in length. If an average man is 5 ft 10 in, tall, how many DNA molecules could be stacked to extend from the ground to the top of the head of an average man? A liquid has a volume of 3.70 L. What is its volume in mL? In cm^3?

Explanation / Answer

1)

length units = meter

mass units = kilograms

volume units = m^3

temperature units = kelvin

2)

M = mega = 10^6

k = kilo = 10^3

m = milli = 10^-3

mue = micro = 10^-6

3)

a ) 3 sigfigs

b) 3 sigfigs

c) 4 sigfigs

d) 3 sigfigs

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