A telescope with a 60 mm objective lens collects how many times as much light as does your eye's 6 mm exit pupil?
A) 5 times
B) 10 times
C) 25 times
D) 100 times
E) 250 times
D
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What is the horsepower needed to change the speed of a 1600-kg sport utility vehicle from 15.0 m/s to 40.0 m/s in 4.00 seconds?
A) 369 hp B) 36.9 hp C) 18.8 hp D) 188 hp E) 275 hp
What does it mean when a website has the https:// protocol designation?
A. The website uses SSL to transmit customer's data. B. The website has been spoofed. C. The website uses a digital signature. D. The website does not use cookies.
What is an SBc galaxy?
A. An unbarred spiral with tight, smooth spiral arms. B. A barred spiral with a large bulge. C. A compact spiral galaxy that is nearly featureless like an elliptical. D. A compact spiral with spiral arms in between loose and tight. E. A barred spiral with loose, lumpy spiral arms.
For nearby spirals, their rotation curves help measure both light and dark matter
Indicate whether the statement is true or false