The Zeeman effect reveals the presence of strong magnetic fields by the splitting of spectral lines
Indicate whether the statement is true or false
TRUE
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According to the Big Bang theory, how many forces, and which ones, operated in the universe during the GUT era?
A) two forces: gravity and a single force that later became the strong, weak, and electromagnetic forces B) one force that represented the unification of all four forces that operate today C) three forces: gravity, the strong force, and the electroweak force D) two forces: the strong force and the electroweak force
Give evidence that magnetism plays a role in planetary nebula formation
What will be an ideal response?
To say that an object is electrically polarized is to say
A) it is electrically charged. B) its charges have been rearranged. C) its internal electric field is zero. D) it is only partially conducting. E) it is to some degree magnetic.
An ideal gas has a pressure of 2.5 atm, a volume of 1.0 L at a temperature of 30°C. How many molecules are there in this gas? (R = 8.31 J/mol ? K,1.00 atm = 101 kPa, NA = 6.022 × 1023)
A) 2.4 × 1022 B) 6.1 × 1023 C) 2.3 × 1023 D) 6.0 × 1022