The Kepler space telescope is searching for extrasolar planets by the transit method
a. True
b. False
Indicate whether the statement is true or false
True
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Look once more at the objects you ranked in Parts A and B. This time, rank the objects from left to right based on how much they have aged since they emitted the light we see today, from greatest to least.
A vehicle undergoes acceleration when it
A) gains speed. B) loses speed. C) changes its direction. D) all of the above
Which of the following provides evidence for the quantization of light?
A) Interference effects seen when light passes through a narrow opening B) The individual dots seen on a photographic plate when a photo is taken at extremely short exposure times C) Both of the above. D) Experiments that spread light out into a spectrum of colors E) All of the above.
A generator produces 60 A of current at 120 V. The voltage is usually stepped up to 4500 V by an ideal transformer and transmitted through a power line of total resistance 1.0 ?
Find the number of turns in the secondary if the primary has 200 turns. A) 4500 B) 7500 C) 200 D) 5