A loop-like bend in a river channel is called a
a. rounder.
b. cirque.
c. wander.
d. meander.
d
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LR Circuits: A resistor and an inductor are connected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across the resistor is
A. greater than the battery's terminal voltage. B. equal to the battery's terminal voltage. C. less than the battery's terminal voltage, but not zero. D. zero. E. equal to the voltage across the inductor.
If your automobile runs out of fuel while driving, the engine stops. You don't come to an abrupt stop due to
A) inertia. B) gravity. C) resistance. D) the principle of continuation.
Free Fall: A ball is thrown downward from the top of a building with an initial speed of 25 m/s. It strikes the ground after 2.0 s. How high is the building, assuming negligible air resistance?
A. 20 m B. 30 m C. 50 m D. 70 m
Which pair of ball-drop experiments will best test whether mass affects the acceleration of gravity?
Exp 1. Mass 0.5 kilograms, height 20 meters Exp 2. Mass 5.0 kilograms, height 20 meters Exp 3. Mass 0.5 kilograms, height 30 meters A) Exp 1 and 3 B) Exp 1 and 2 C) Exp 2 and 3