Two children ride on a merry-go-round, George is at a greater distance from the axis of rotation than Jacques. It is a true statement that
A) Jacques has a greater angular velocity than George.
B) Jacques and George have the same angular velocity.
C) Jacques has a smaller angular velocity than George.
D) both have zero angular velocities.
E) Cannot tell which one has the greater angular velocity without knowing their masses.
Question 2
Protons are being accelerated in a particle accelerator. When the energy of the protons is doubled, their de Broglie wavelength will
A) increase by a factor of 4.
B) increase by a factor of 2.
C) decrease by a factor of 2.
D) increase by a factor of .
E) decrease by a factor of .
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