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 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
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