In a Compton scattering experiment, the scattered photon has a wavelength of 6.55 pm. If the scattering angle is 
what is the wavelength of the incident photon?
A. 5.68 pm
B. 7.42 pm
C. 3.28 pm
D. 0.868 pm
E. 2.43 pm
A. 5.68 pm
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A star on the main sequence has 7 solar masses. The star will evolve into a ____________ and its core will be supported by ______________
a. white dwarf, electron degeneracy pressure b. neutron star, neutron degeneracy pressure c. black hole, no pressure (i.e., it will not be supported) d. white dwarf, neutron star, or black hole; electron degeneracy, neutron degeneracy, and no pressure, respectively.
The greater the frequency of light, the greater the ______________ of its photons
a. velocity b. speed c. wavelength d. energy
A long wire carrying a 2.0-A current is placed along the y axis. What is the magnitude of the magnetic field at a point 0.60 m along the x-axis?
A) 6.7 × 10-7 T B) 13 × 10-7 T C) 1.2 × 10-7 T D) 6.7 T E) 12 T
"Physics" could best be described as the study of
A) atoms in motion. B) matter. C) the general principles underlying natural phenomena. D) the application of science to the needs of human beings. E) the absolute, or certain, truths about the natural world.