What, approximately, are the dimensions of the smallest object on Earth that the astronauts can resolve by eye at 200 km height from the space shuttle? Assume l = 500 nm light and a pupil diameter D = 0.50 cm. Assume eye fluid has an average n = 1.33
a. 150 m
b. 100 m
c. 250 m
d. 25 m
e. 18 m
E
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According to our theory of solar system formation, what are asteroids and comets?
A) the shattered remains of collisions between planets B) chunks of rock or ice that condensed after the planets and moons finished forming C) chunks of rock or ice that were expelled from planets by volcanoes D) leftover planetesimals that never accreted into planets
If you had something the size of a sugar cube that was made of neutron star matter, it would weigh ________
A) about as much as a large mountain B) as much as the entire Earth C) about 50 pounds D) about as much as a truck
Contrast Irr I and II in terms of structure
What will be an ideal response?
Clouds occur when moist air is cooled by
A) expansion when it rises. B) compression when it rises. C) expansion when it falls. D) compression when it falls.