Assuming that light could curve around Earth, about how long would it take for one trip?
A. 1 second
B. 1/7 second
C. 7 minutes
D. 7 seconds
Answer: B
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A charged particle with charge + 5.0 ?C is initially at rest. It is accelerated through a potential difference of 500 V. What is the kinetic energy of this charged particle?
A) 2.5 × 10-3 J/m B) 2.5 × 10-3 J C) 2500 J D) 2500 J/m E) 0 J
What kind of reactor produces more fissionable fuel than it consumes?
A) AOLA B) LOCA C) moderated D) heavy water E) breeder
A cubical gaussian surface surrounds a long, straight, charged filament that passes perpendicularly through two opposite faces. No other charges are nearby. Through how many of the cube’s faces is the electric flux zero?
1.0 2.2 3.4 4.6
Thermal Expansion: A glass flask has a volume of 500 mL at a temperature of 20°C. The flask contains 492 mL of mercury at an equilibrium temperature of 20°C. The temperature is raised until the mercury reaches the 500 mL reference mark. At what temperature does this occur? The coefficients of volume expansion of mercury and glass are 18 × 10-5 K-1 (mercury) and 2.0 × 10-5 K-1 (glass).
A. 120°C B. 110°C C. 100°C D. 140°C E. 130°C