A sub-surface region that holds and transmits water is called a/an
A) aquifer.
B) hydrometer.
C) water table.
D) aquiclude.
Answer: A
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Two resistors can be either connected to a battery in series or in parallel. In which case, if either, is the equivalent resistance the smallest?
a) When the two resistors are wired in parallel, the equivalent resistance is less than if they are wired in series. b) When the two resistors are wired in series, the equivalent resistance is less than if they are wired in parallel. c) Both series and parallel wiring will result in the same equivalent resistance. d) It is not possible to know which method of wiring will result in the lowest equivalent resistance without knowing the values of the two resistances.
What is the most convincing piece of evidence to suggest that Martian meteorites actually come from Mars?
A) they are igneous rocks B) they contain trapped gases with a similar composition to the Martian atmosphere C) they are red in color D) they show evidence for having been in contact with water
A concave mirror with a radius of curvature of 1.0 m is illuminated by a candle located on the symmetry axis 3.0 m from the mirror. Where is the image of the candle?
What will be an ideal response?
A flat square coil of wire with 15 turns and an area of 0.40 m2 is placed with the plane of its area parallel to a magnetic field of 0.75 T
The coil is flipped so its plane is perpendicular to the magnetic field in a time of 0.050 s. What is the magnitude of the average induced emf in the coil? A) 6.0 V B) 36 V C) 45 V D) 90 V