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finlep [7]
3 years ago
10

When using water displacement to measure the volume of an irregularly shaped solid, like a rock, which of the following would be

a more appropriate unit to convert milliliters to?
cubic centimeter
gram
liter
centiliter
Physics
2 answers:
NikAS [45]3 years ago
3 0
Three cubic centimeters
Kruka [31]3 years ago
3 0

Answer:

Cubic centimeter (A)

Explanation:

OW is stupid, Sub to Pewds, also TwoSetViolin, and leave hate comments on Davie504.

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The Reynolds number, rho VD/mu, is a very important parameter in fluid mechanics. Verify that the Reynolds number is dimensionle
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Answer:

Re = 1 10⁴

Explanation:

Reynolds number is

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The units of each term are

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       v = [m / s]

      D = [m]

      μ = [Pa s]

The pressure

      Pa = [N / m²] = [Kg m / s²] 1 / [m²] = [kg / m s²]

      μ = [Pa s] = [kg / m s²] [s] = [kg / m s]

We substitute the units in the equation

      Re = [kg / m³] [m / s] [m] / [kg / m s]

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      RE = [ ]

Reynolds number is a scalar

Let's evaluate for the given point

Where the data for methane are:

viscosity       μ = 11.2 10⁻⁶ Pa s

the density  ρ = 0.656 kg / m³

       D = 2 in (2.54 10⁻² m / 1 in) = 5.08 10⁻² m

       Re = 0.656 4 2 5.08 10⁻² /11.2 10⁻⁶

       Re = 1.19 10⁴

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Answer:

C

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