What is the energy of a photon that has the same wavelength as an electron with energy
J?
A. 10.0 keV
B. 101 keV
C. 55.3 keV
D. 5.53 keV
E. 6.77 keV
B. 101 keV
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Supermassive black holes erupt in ____
a. any type of galaxy, and at random times b. elliptical galaxies only, when the last of their gas and dust is consumed c. galaxies that have been part of a collision or merger d. spiral galaxies only, during a burst of star formation e. irregular galaxies
____________________ is the resistance of a gas to the flow of radiation
Fill in the blank(s) with correct word
What would happen if both pins in Procedure 1 were located at the same point, that is, right next to each other actually touching? (Try it if you need to, so that you can see what the result would be.)
To be dimensionally consistent, velocity [L/T], force mass [M], and length [L] must be related as follows.
A.
B.
C.
D. velocity = force length/mass