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sweet [91]
3 years ago
11

C. A helium atom has a diameter of approximately 9.8 • 10-11 meters. What is the diameter of a helium atom in nanometers? Given

unit: ____________ Answer unit: ____________ Solution: ____________
Physics
1 answer:
Studentka2010 [4]3 years ago
4 0

1\ nm = 10^{-9} m\\\\1\ m =\frac{1\ nm}{10^{-9}}

Since the diameter of helium atom is approximately 9.8\times 10^{-11}\ m, therefore the diameter of helium atom in nano meter,

9.8\times 10^{-11}\ m=9.8\times 10^{-11} \times\frac{1\ nm}{10^{-9}}=0.098\ nm

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NNADVOKAT [17]

Answer:

a) 578.0 cm²

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Explanation:

We're given the density and mass, so first calculate the volume.

D = M / V

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A = (0.3489 cm³) / (6.036×10⁻⁴ cm)

A = 578.0 cm²

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So now we can calculate the speed at t=2 s and t=4 s:
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