An observer measures the North Star (Polaris) at an altitude of 70°. The observer's latitude is
a. 25°N.
b. 20°N.
c. 105°N.
d. 70°N.
e. none of these.
d
Physics & Space Science
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Venus has a feature named Aphrodite Terra. What is this feature?
A) a very large volcano B) a large impact crater C) a continental-sized plateau D) a large basin similar to the maria on the Moon E) a great rift valley like Valles Marineris on Mars
Physics & Space Science
An electrically polarized object normally has
A) a net charge of zero. B) displaced charges. C) both of these D) none of the above
Physics & Space Science
In order for two waves to interfere completely destructively, they must have the same amplitude
Indicate whether the statement is true or false
Physics & Space Science
As air temperature cools below its dew point temperature, the air's water vapor
A) increases. B) decreases. C) condenses. D) evaporates.
Physics & Space Science