The red hydrogen alpha line carries more energy per photon than the blue-green hydrogen beta line does
Indicate whether the statement is true or false
FALSE
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Kepler's Third law relates a planet's orbital period and its average distance from the Sun (p2 = a3 ). If a new comet were discovered with an average distance from the Sun of 100 AU, its period would be
A) 1000 years. B) 10,000 years. C) 150 years. D) 1 million years. E) not enough information to say.
In the above cartoon of the Orion constellation, the upper red supergiant star is known as Rigel and the lower right supergiant star is known as Betelgeuse
a. True
b. False
How far apart should two protons be if the electrical force of repulsion exerted on each one is equal to its weight on the earth? (k = 1/4??0 = 9.0 × 109 N ? m2/C2, e = 1.6 × 10-19 C, mproton = 1.67 × 10-27 kg)
What will be an ideal response?
When two or more different capacitors are connected in series across a potential source, which of the following statements must be true? (There could be more than one correct choice.)
A) The total voltage across the combination is the algebraic sum of the voltages across the individual capacitors. B) Each capacitor carries the same amount of charge. C) The equivalent capacitance of the combination is less than the capacitance of any of the capacitors. D) The potential difference across each capacitor is the same. E) The capacitor with the largest capacitance has the most charge.