If you were all powerful, how could you make the difference between a planet's night and day temperatures larger?
A) Increase the greenhouse gas content of the planet's atmosphere.
B) Increase the tilt of the planet's rotation axis.
C) Make the planet rotate more slowly.
D) Increase the number of impact craters on the planet.
C) Make the planet rotate more slowly.
You might also like to view...
A telescope is used to view two small lights separated by 2.0 cm at a distance of 500 m. What minimum objective lens diameter is needed to just resolve these objects if their wavelength is 656 nm?
a. 2.0 cm c. 1.2 cm b. 1.0 cm d. 2.4 cm
Following a series of experiments in which you are flung against walls to test the resiliency of the human body, you are ejected from the ship and find yourself in a maelstrom
Whipped by winds gusting at 10,000 km/hr, rising and falling in convective currents, you are not having a good time. 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 are consequences of different speeds of light in different media?
A) mirages B) rainbows C) brilliant colors of diamonds D) all of the above E) none of the above
Could we see a galaxy that is 20 billion light-years away? (Assume that we mean a "lookback time" of 20 billion years.)
A) no, because it would be beyond the bounds of our observable universe B) yes, if we had a big enough telescope C) no, because a galaxy could not possibly be that far away D) Yes, we have already detected galaxies at that distance.