The discovery of extremophiles on Earth suggests that
A) life elsewhere will only be found under conditions that are similar to those of Earth
B) life elsewhere will only be possible over a much narrower range of conditions than initially thought
C) life elsewhere may be possible over a much wider range of conditions than initially thought
D) extraterrestrial life will exist only under extreme conditions
C
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In Fizeau's experiment to measure the speed of light, the wheel has 475 notches and rotates with a speed of 55.0 rev/sec. Light passing through one notch travels to the mirror and back just in time to pass through the next notch
If the distance between the wheel and the mirror is 8800 m, how much time does it take the wheel to rotate from one notch to the next? A) 11.9 s B) 24.8 s C) 3.83 × 10-5 s D) 7.44 × 10-5 s E) 8.44 × 10-5 s
Double-Slit Interference: A two-slit arrangement with 60.3 ?m separation between the slits is illuminated with 537.0-nm wavelength light. If a viewing screen is located 2.14 m from the slits, find the distance on the screen from the first dark fringe on one side of the central maximum to the second dark fringe on the other side.
A. 57.2 mm B. 38.1 mm C. 76.3 mm D. 26.9 mm
What concepts can be explain using this diagram?
a) the movement of water between the oceans and the land b) how precipitation ends up in rivers or groundwater c) how weathering causes the seas to become saltier d) all of these
The magnitude of the orbital angular momentum L of an electron in a certain atom is equal to 3.464?. What is the orbital quantum number l of the electron?
A) 1 B) 2 C) 3 D) 4 E) 5