Which of the following is the fastest human device ever launched?
A) Sputnik 1
B) The New Horizon probe
C) The Rosetta orbiter
D) Voyager 2
B
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You make a roundtrip to a star located 1000 light-years away (so the roundtrip distance is 2000 light-years in Earth's reference frame) at an average speed of 0.99c. Based on the time dilation formula below, about how long will the trip take, according to you?
t' = t A) 2.8 years B) 10 years C) 28 years D) 280 years E) 2000 years
You find yourself in a maelstrom, whipped by winds gusting at 10,000 km/hr, rising and falling in convective currents
On the rare occasions when you can assess your surroundings, you notice a horizon that seems to go on "forever" (or, at least, much farther than the horizon on Earth), and no solid surface anywhere. You get a glimpse of several large moons. The Sun races through your sky, requiring only about 5 hours to rise nearly due east, cross the meridian at an altitude of about 55° in the north, and then set due west.
Which telescope is the largest refracting telescope in the world?
a. Large Binocular Telescope b. Gemini-North optical telescope c. Very Large Array d. Keck telescope e. Yerkes Observatory refractor telescope
"Absolute Zero" is how many Fahrenheit degrees below freezing (water)?
What will be an ideal response?