Why was it thought that Titan may have oceans of methane?
A) Titan's atmosphere contains traces of methane. Similarly, Earth's atmosphere contains traces of water vapor. So, scientist thought Titan should have methane oceans.
B) The atmospheric pressure at Titan's surface and its surface temperature are such that methane should be liquid on Titan's surface.
C) The abundance of hydrocarbons in the atmosphere of Titan, led scientists to believe that Titan had an abundance of methane on its surface.
D) Titan's atmosphere is like Earth's (mostly nitrogen), but its temperature is too low for water to be in the liquid phase. The only other possible liquid was methane.
E) Since Saturn has methane ice in its atmosphere, methane should be abundant in this region of the solar system. The sheer abundance of methane in the region led scientists to hypothesize methane oceans on Titan.
B
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Impulse: A force of 5.3 N is needed to hold on to an umbrella in a strong wind. If the air molecules each have a mass of 4.7 × 10-26 kg, and each one strikes the umbrella (without rebounding) with a speed of 2.0 m/s in the same direction, how many atoms strike the umbrella each second? Assume that the wind blows horizontally so that the gravity can be neglected.
What will be an ideal response?
This painting shows an artist's conception of what it would look like to be within Saturn's system of rings. Notice the many whitish "balls" visible in this painting. Based on what you have learned about rings, about how large are each of these "balls," on average?
A) about a size that you could hold in your arms B) about the size of a large asteroid C) about the size of Earth's Moon D) They are microscopic clusters of about 10 to 20 atoms each.
A film of index of refraction n1 coats a surface with index of refraction n2. When n1
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.Accuracy refers to the repeatability of a measurement using a given instrument
Indicate whether the statement is true or false