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Key Concept Quiz 8.7
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1
A decorative lamp in a park uses a spherical electric bulb with an inside radius of 9.2 cm and an outside radius of 9.4 cm. Find the volume of argon gas required to fill the inside of the bulb.
A)815.5 cm3
B)869.8 cm3
C)3261.8 cm3
D)3479.1 cm3
2
Find the volume of the bulb.
A)815.5 cm3
B)869.8 cm3
C)3261.8 cm3
D)3479.1 cm3
3
Find the volume of glass needed to make the bulb.
A)217.4 cm3
B)682.7 cm3
C)2730.7 cm3
D)3369.3 cm3
4
The Sudbury Neutrino Detector (SNO) uses a sphere 18 m in diameter filled with heavy water, buried 2 km below the Earth's surface in a mine. Find the volume of heavy water needed to fill the sphere.
A)972.0 m3
B)3053.6 m3
C)6107.3 m3
D)24 429.0 m3
5
If the sphere were encased in a box such that it just fit, how much empty space would remain in the box?
A)729.0 m3
B)2778.4 m3
C)5556.8 m3
D)5832.0 m3





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