The relative ages of igneous rocks can be determined using which of the following? Choose ALL of the correct answers.
A. cross-cutting relationships
B. contact metamorphic zones
C. inclusions
D. the Principle of Original Horizontality
Answer:
A. cross-cutting relationships
B. contact metamorphic zones
C. inclusions
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Refer to the figure above. Assuming that all transitions between levels are possible, how many spectral lines will this atom exhibit?
1) 1 2) 2 3) 3 4) 4 5) 5 The spectral line of highest frequency will result from an electron transition from n = 3 to 6) n = 2. 7) n = 1. 8) either, if the levels are equidistant.
When frozen water on the surface of Mars heats up during summer time, the water
a. melts and forms liquid pools on the surface. b. boils off the surface and escapes into outer space. c. sublimates and goes directly into the gaseous phase. d. remains frozen because the temperature remains below the freezing point. e. melts and creates flowing rivers that erode the landscape.
A comet that has a semi-major axis of 100 AU must have a period of about
A. 20 years. B. 100 years. C. 1,000 years. D. 10 years.
A 0.140-kg baseball is dropped and reaches a speed of 1.20 m/s just before it hits the ground and bounces. It rebounds with an upward velocity of 1.00 m/s. What is the change of the ball's momentum during the bounce?
A) 0.0280 kg ? m/s upwards B) 0.0280 kg ? m/s downwards C) 0.308 kg ? m/s upwards D) 0.308 kg ? m/s downwards E) 0.000 kg ? m/s