A fault in which the footwall has moved down relative to the hanging wall is called a
A) normal fault.
B) reverse fault.
C) transform fault.
D) horizontal fault.
Answer: A
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Indicate whether the statement is true or false
A hollow aluminum shaft (G 5 27 GPa, d2 5 96 mm, and d1 5 52 mm) has an angle of twist per unit length of 1.8°/m due to torques T. The resulting maximum tensile stress in the shaft is approximately:
(A) 38 MPa
(B) 41 MPa
(C) 49 MPa
(D) 58 MPa
By radiometric dating, the oldest mineral in a sedimentary rock was found to be 1.4 million years old. What is the age of the sedimentary rock?
A) 1.4 million years B) no older than 1.4 million years C) no younger than 1.4 million years D) Radiometric dating does not work for sedimentary rocks.
A waiter in a restaurant fills a pitcher full of water and ice so that water would spill out if any more were added. As the ice starts to melt
A. the water level in the pitcher falls. B. the water level in the pitcher remains the same. C. water starts to flow out the spout of the pitcher. D. the pressure on the bottom of the pitcher decreases. E. the pressure on the bottom of the pitcher increases.