Which of the following is a type of fast mass
wasting?
a) glacier flow
b) creep
c) meanders
d) mudslides
d
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Greek philosophers used religion and astrology to understand the mysteries of the universe
a. True b. False Indicate whether the statement is true or false
Why does Mars have seasons?
a) Mars has an atmosphere which deteriorates and regenerates on a yearly cycle. b) It rotates only a few times during each orbit around the Sun. c) Mars has a very elliptical orbit that brings it very close to the Sun during summer,and far from the Sun during winter. d) Its orbit is circular. e) Its axis is tilted relative to its orbital plane.
Which of the following are attracted by gravity?
A) antimatter B) any object with mass C) electromagnetic radiation D) neutrinos E) All of the above
A 29.0-pm-wavelength photon is scattered by a stationary electron
What is the maximum energy loss the photon can have? (melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J) A) 15 keV B) 4.0 keV C) 6.1 keV D) 10 keV E) 12 keV