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Atmospheric pressure at sea level is

1. \( 1.013103 \mathrm{Pa} \)
2. 1.013 104 Pa
3. 1.013 105 \( \mathrm{Pa} \)
4. 1.013 106 Ра

Correct answer: 1.013 105 \( \mathrm{Pa} \)

Solution

Standard atmospheric pressure at sea level is defined as 1 atmosphere, which equals about 1.013 × 10^5 pascals. That matches the option with 10^5 Pa.

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