A hydrogen only spectrum

This series of the hydrogen emission spectrum is known as the Balmer series. This is the only series of lines in the electromagnetic spectrum that lies in the visible region. The value, 109,677 cm-1, is called the Rydberg constant for hydrogen.

Explanation:

yes

Explanation:

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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