Within the Northern Hemisphere, the vernal equinox marks the start of ____
a. winter
b. fall
c. summer
d. spring
e. a new year
d
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The conclusion that everywhere in the Universe galaxies, stars, and planets are distributed similarly (i.e. there is no "preferred" location or center or edge) is called
a. deduction. b. the cosmological principle. c. Ockham's Razor. d. the similarity principle. e. reduction.
Compared with special relativity, general relativity is more concerned with
A) acceleration. B) gravitation. C) spacetime geometry. D) all of the above E) none of the above
The shape of the magnetic field around a bar magnet is very close to the shape of the electric field around a single positive charge
a. True b. False Indicate whether the statement is true or false
The Aswan High Dam is 111 m high. What is the water pressure at the foot of the dam?
A) 1.09 k Pa B) 0.111 k Pa C) 0.111 M Pa D) 1.09 M Pa E) 111 Pa