Which of the following statements best describes the Franck-Hertz experiment?
C.
The Franck-Hertz experiment involved colliding accelerated electrons and atoms in a gas, thereby exciting the atoms when the electrons give up some kinetic energy. The experiment showed that transitions of electrons to higher energy states are quantized and in calculable intervals.
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A 30-g bullet traveling horizontally at 300 m/s strikes a 1.0-kg block which is attached to a horizontal spring with a force constant of 2000 N/m and rests on a frictionless horizontal surface
The spring is on the far side of the block and aligned with the direction of travel of the bullet. The bullet becomes embedded in the block and, as a result of the impact, and the block slides against the spring. How far is the spring compressed before it reverses its direction of travel? A) 0.20 m B) 0.58 m C) 1.2 m D) 0.40 m E) 0.039 m
Pressure in a Liquid: As shown in the figure, fluid fills a container having several sections. At which of the indicated points is the pressure greatest?
A. A B. B C. C D. D E. The pressure is the same at each of the labeled points.
The Sun rotates slower near its poles than near its equator.
Answer the following statement true (T) or false (F)
Theories are derived directly from observations
Indicate whether the statement is true or false