By combining three oxygen atoms, a/an ________________ layer formed in Earth's atmosphere, which absorbs UV photons
Fill in the blank(s) with correct word
ozone
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Electrons moving in a strong magnetic field emit ____________________ radiation
Fill in the blank(s) with correct word
A fluorescent bulb emits what kind of spectrum?
A. absorption-line B. blueshifted C. continuous D. redshifted E. emission-line
What do we mean when we talk about the Milky Way in our sky?
A) the whitish patch of light we see when we look toward the center of the Milky Way Galaxy B) the spiral-shaped galaxy in which we live C) the patchy band of light that outlines the plane of the Milky Way Galaxy as seen from Earth D) the bright stars of the constellations that lie along the ecliptic in our sky
An electron is accelerated from rest through a potential difference. After acceleration the electron has a wavelength of 880 nm. What is the potential difference responsible for the acceleration of the electron?
(h = 6.626 × 10-34 J ? s, melectron = 9.11 × 10-31 kg, e = 1.6 10-19 C) A) 1.9 × 10-6 V B) 1.7 × 10-6 V C) 2.2 × 10-6 V D) 2.5 × 10-6 V