Energy is transferred by waves
a) in the same direction as the propagation of the wave
itself
b) only if the waves are in resonance with each other.
c) only when the waves propagate through a physical
material.
d) only if the waves are longitudinal.
a
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The electron orbiting the proton in the hydrogen atom is at a distance of 
m. What is the magnitude of the electric force between the proton and the electron?
a. 
b. 
c. 
d. 
e. 
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a. 5.0 N b. 3.8 N c. 4.2 N d. 4.6 N e. 6.5 N
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