A beam of photons of wavelength 0.55 nm undergoes Compton scattering from free electrons.What is the energy of the photons that emerge at a 35° angle with respect to the incident beam?
a. 2.3 keV
b. 10.9 keV
c. 36.0 keV
d. 3.0 keV
a
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Free Fall: An astronaut on a strange new planet having no atmosphere finds that she can jump up to a maximum height of 27 m when her initial upward speed is 6.0 m/s. What is the magnitude of the acceleration due to gravity on the planet?
Fill in the blank(s) with the appropriate word(s).
The larger terrestrial planets have surface features that tend to be
A) more cratered. B) older. C) younger. D) more rocky. E) more icy.
What is the wave speed in a brass wire with a radius of 0.500 mm stretched with a tension of 125 N? The density of brass is 8.60 × 103 kg/m3
A) 0.121 m/s B) 136 m/s C) 100 m/s D) 500 m/s E) 68.8 m/s
The EPA primary standards guarantee that no person can be harmed by air pollution
What will be an ideal response?