How big is the Sun compared to Earth, approximately?
A. 15 times bigger
B. 5 times bigger
C. 100 times bigger
D. 1,000 times bigger
E. 500 times bigger
Answer: C
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Which of the fields are physically impossible and why?
A. This field violates Faraday’s law. B. This field violates Gauss’s law. C. This field violates both of the above laws. D. This field is physically possible.
If the energy of a particle in a box in the ground state is E, what is the energy in the state n = 4?
What will be an ideal response?
It is late and Carlos is sliding down a rope from his third floor window to meet his friend Juan. As he slides down the rope faster and faster, he becomes frightened and grabs harder on the rope, increasing the tension in the rope. As soon as the upward tension in the rope becomes equal to his weight:
a. Carlos will stop. b. Carlos will slow down. c. Carlos will continue down at a constant velocity. d. the rope must break.
The 1920s represents the dawn of commercial radio. How would those investors interested in the new technology decided what growth possibilities there were? Would knowledgeable investors have drawn straight lines on regular or on semilogarithmic
graph paper? Why?