A bullet is fired from a gun. The speed of the bullet will be about the same as the speed of the recoiling gun
A) because momentum is conserved.
B) because velocity is conserved.
C) because both velocity and momentum are conserved.
D) if the mass of the bullet equals the mass of the gun.
E) none of the above
D
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How is it possible to deduce the identity of an element from its electron configuration?
A. Using the periodic table, the outermost occupied shell indicates the group while the number of occupied shells indicates the period. B. If the atom is electrically neutral, the number of electrons corresponds to the atom's atomic number. C. The number of occupied shells corresponds to the atom's atomic number. D. An electron configuration is unique to each element, much like its atomic spectrum.
The difference between a nature reserve and a wilderness area is that people are allowed to visit nature reserves
Indicate whether the statement is true or false
During atmospheric convection, rising air bubbles are called ____
A) wind B) vapors C) thermals D) clouds
How would this stream interact with groundwater?
A. The stream will only contain water if it is raining at that time. B. Groundwater would flow into the stream, adding water. C. The stream would lose water as water in the stream flows sideways and up. D. The groundwater and stream water would not interact.