The pink color of the chromosphere is produced by the combined light of three emission lines of hydrogen: ____
a. red, magenta, and violet
b. red, blue, and violet
c. indigo, blue, and red
d. blue, green, and yellow
e. green, blue, and violet
b
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A 1.00-m3 object floats in water with 20.0% of its volume above the waterline. What is the force that Earth exerts on the object? The density of water is 1000 kg/m3
A) 1,960 N B) 7,840 N C) 9,800 N D) 11,800 N
Name two observable consequences of the Earth's tidal pull on the Moon
What will be an ideal response?
What primary wavelength and corresponding photon energy is emitted by a body at:
(a) 400.°C? (b) 800.°C? (c) 1200.°C?
In the context of the electromagnetic spectrum, which of the following forms of electromagnetic radiation has a shorter wavelength than the shortest wavelength of visible light?
A) Red light B) Microwaves C) Radio waves D) Ultraviolet light