Which of the fields are physically impossible and why?
A. This field violates the Ampere-Maxwell law.
B. This field violates Gauss’s law for the magnetic field.
C. The field violates both of the above laws.
D. This field is physically possible.
A. This field violates the Ampere-Maxwell law.
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To the nearest percent, what fraction of an iceberg is submerged? (?ice = 917 kg/m3, ?sea = 1.03 × 10^3 kg/m3.)
a. 95% b. 93% c. 91% d. 89% e. 77%
The Young's modulus of aluminum is
If the density of aluminum is 
then what is the velocity of longitudinal waves along a thin aluminum rod?
A. 6,360 m/s B. 6,020 m/s C. 5,750 m/s D. 5,060 m/s E. 4,850 m/s
The most accurate Greek attempt to explain planetary motion was the model of
A) Aristotle. B) Pythagoras. C) Hipparchus. D) Ptolemy. E) Erastothenes.
Two cyclists of different mass take a turn on a level road. They follow the same path and are moving the same constant speed for the turn. Which of the following statements is correct?
A. The acceleration is larger for the more massive cyclist B. The acceleration is not zero but is the same for both C. The acceleration is zero for both D. The acceleration is larger for the less massive cyclist