A 3rd magnitude star is 3 times brighter than a 1st magnitude star
a. True
b. False
Indicate whether the statement is true or false
False
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Suppose that we connect two identical realistic batteries in parallel. The internal resistance of the combined set of batteries (considered as a unit) is
A. twice that of each individual battery. B. half that of each individual battery. C. the same as that of each individual battery.
As a spaceship approaches the event horizon of a black hole, its radio transmissions would
A) be sucked into the black hole. B) shifted to infrared or even visible light. C) shifted to longer wavelength. D) increase in amplitude. E) be unchanged.
For there to be an acceleration, there must necessarily be a change in ______________
Fill in the blank(s) with correct word
In the Southern Hemisphere, the direction of Ekman transport is
A) at a 45° angle from the wind direction. B) parallel to the wind direction. C) to the right of the wind direction. D) to the left of the wind direction.