____ is a set of rules that describes how atoms and subatomic particles behave
a. Kirchhoff's law
b. Blackbody radiation law
c. The Coulomb force
d. Quantum mechanics
e. The binding energy
d
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RR Lyrae stars are in the constellation ___________
Fill in the blank(s) with correct word
The mean free path of a gas molecule is:
A. the shortest dimension of the containing vessel B. the cube root of the volume of the containing vessel C. approximately the diameter of a molecule D. average distance between adjacent molecules E. average distance a molecule travels between intermolecular collisions
The few individual stars that are seen in the Hubble Deep Field image
A. are actually distant quasars. B. are located in galaxies near the edge of the observable universe. C. are the main targets for our observations of that region of the sky. D. are stars in our own Milky Way galaxy. E. are in the nearby Andromeda galaxy.
An object of mass m moving with a certain speed has a kinetic energy of 0.0124 J. The object collides with a horizontal spring and compresses it by 0.800 m before it is brought to rest. What is the spring constant of this spring?
A) 0.315 N/m B) 0.150 N/m C) 0.194 N/m D) 0.0235 N/m E) 0.0388 N/m