Magnetism is due to the motion of electrons as they
A) move around the nucleus.
B) spin on their axes.
C) both of these
D) neither of these
Answer: C
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A 0.5 kg fish, hooked as shown below, starts to swim away at a speed of 3 m/s. The angular momentum of the fish relative to the hand holding the fishing rod is about
a.
On the Kelvin scale the temperature is proportional to the average kinetic energy of the atoms or molecules whose temperature is being measured
Indicate whether the statement is true or false
A charged particle that is moving in a static uniform magnetic field
A) will always experience a magnetic force, regardless of its direction of motion. B) may experience a magnetic force which will cause its speed to change. C) may experience a magnetic force, but its speed will not change. D) may experience a magnetic force, but its direction of motion will not change. E) None of the above statements are true.
The vibrating system with the greatest frequency has the
A) shortest period. B) longest period. C) both of these D) none of the above