If our solar system hadn't formed with a Jupiter-sized planet,
A) the Sun would have been more massive, with a lifetime too short for life to evolve
B) the Earth would have never formed
C) the rate of impacts on the Earth may have been much higher, possibly preventing the appearance of life
D) the rate of impacts on the Earth may have been much lower, enabling the appearance of life much earlier
C
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If you can't avoid being hit by a fast-moving object, you'll suffer a smaller contact force if you can extend that force over a
A) longer time. B) shorter time. C) both the same
Light with ? = 590 nm enters a Michelson interferometer. How many fringes traverse the field of view if the mirror of one arm of the interferometer is moved 0.44 mm?
A) 1066 B) 1812 C) 2004 D) 1776 E) 1492
What do we call it when a planet moves backward (east to west) through the stars?
A. retrograde motion B. the Zodiac C. prograde motion D. regression
A soap bubble, when illuminated at normal incidence with light of 463 nm, appears to be especially reflective. If the index of refraction of the film is 1.35, what is the minimum thickness the soap film can be if it is surrounded by air?
What will be an ideal response?