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Last updated 5:02 AM on 7/22/26
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12 Terms

1
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diameter of an atom

10^-10m

2
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wavelength of uv light

10nm

3
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height of a human adult

2m

4
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distance between earth and sun (1AU)

1.5 × 10^8 m

5
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mass of a hydrogen atom

10^-27 kg

6
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mass of an adult human

70kg

7
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mass of a car

1000kg

8
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seconds in a day

90000s

9
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seconds in a year

3 × 10^7 s

10
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speed of sound in air

300ms^-1

11
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power of a light bulb

60W

12
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atmospheric pressure

1 × 10^5 Pa