When a comet is in the inner solar system, what part of it points most directly away from the Sun?
A) the denser side of its nucleus
B) its coma
C) jets of gas emerging from its nucleus
D) its tail
D) its tail
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LCDs operate on the principle of refraction through glass
a. True b. False Indicate whether the statement is true or false
You throw a ball straight up. As the ball is going up, the direction of the velocity and acceleration point __________
Fill in the blank(s) with correct word
If a wave from one slit of a Young's double slit experiment arrives at a point on the screen one-half wavelength behind the wave from the other slit, which is observed at that point?
A) bright fringe B) dark fringe C) gray fringe D) multi-colored fringe
What is the wavelength of the line in the Balmer series of hydrogen that is comprised of transitions from the n = 5 to the n = 2 level? (R = 1.097 × 10^7 m?1 and 1 nm = 10?9 m)
a. 304 nm b. 434 nm c. 476 nm d. 95 nm e. 333 nm