Of the following states, 5s, 3p, 4f, 5p, 4g, 3d, and 2p, the one which is NOT allowed is
a. 3p
b. 4f
c. 3d
d. 4g
e. 2p
d
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A blimp has a velocity of 8.2 m/s due west relative to the air. There is a wind blowing at 3.5 m/s due north. The speed of the balloon relative to the ground is
A. 11.7 m/s B. 8.9 m/s C. 7.4 m/s D. 4.7 m/s E. Some other speed (specify)
Astronaut Hans leaves Earth in a spaceship traveling at a speed of 0.280c relative to the observer Brian at rest on Earth
Hans is holding a pencil at an angle of 30° with the direction of travel, as seen by Hans. What angle does the pencil make with the direction of travel, as seen by Brian on Earth? A) 29° B) 30° C) 31° D) 33° E) 90°
Compared to the buoyant force on you when floating in fresh water, buoyant force on you when floating in the dense water of the Dead Sea is
A) less because volume displacement is less. B) more because of the greater density of fluid displaced. C) the same.
For the Pleiades, a fifty-million-year-old cluster, we find classes ________ and ________ already leaving the main sequence, making the seven bright giants in the "seven sisters."
Fill in the blank(s) with correct word