A nonfoliated metamorphic rock composed of carbonate minerals is
A) gneiss.
B) quartzite.
C) slate.
D) marble.
Answer: D
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Olbers's paradox makes an incorrect prediction that it gets dark at night because the Universe is:
A) eternal B) closed. C) static. D) flat.
A spherical air bubble originating from a scuba diver at a depth of 30.0 m has a diameter of 1.0 cm. What will the bubble's diameter be when it reaches the surface? (Assume constant temperature.)
a. 0.7 cm c. 1.4 cm b. 1.0 cm d. 1.6 cm
Two long parallel wires are separated by 2.0 cm. The current in one of the wires is three times the other current. If the magnitude of the force on a 2.0-m length of one of the wires is equal to 60 mN, what is the greater of the two currents?
a. 2.0 A b. 1.0 A c. 3.0 A d. 9.0 A e. 1.5 A
A rod with a diameter of 2.00 mm, projects 20.0 mm horizontally outward from a wall. A 10.0 N weight is hung from the end of the rod and the rod deflects downward by 
The shear strain of the rod is
A. 
B. 
C. 
D. 
E. 