One theory for the origin of life suggests that life was transported to Earth in meteorites. This is referred to as
A) naturism
B) intelligent design
C) panspermia
D) chemical evolution
C
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An electron in a cathode ray tube is accelerated through a potential difference of 10 kV. What kinetic energy does the electron gain in the process? (e = 1.6 × 10^-19 C)
a. 8.0 × 10^-16 J c. 8.0 × 10^22 J b. 1.6 × 10^-15 J d. 1.6 × 10^-16 J
When a photon collides with a free electron at rest and the direction of motion of the photon changes,
a. the magnitude of the momentum of the photon does not change. b. the momentum of the electron does not change. c. the kinetic energy of the electron does not change. d. the total energy of the photon does not change. e. both the magnitude of the momentum and the total energy of the photon decrease.
What is the magnitude of the momentum of a proton moving at 0.95 c? 
A. 
B. 
C. 
D. 
E. 
What is the Fermi energy?