The bob of a simple pendulum has its maximum potential energy at the
A. bottom of its swing.
B. same at all points along its path of swing.
C. midpoint between top and bottom of its swing.
D. top of its swing.
Answer: D
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Evaluate the possibility of Quebec separating to form an independent country
What will be an ideal response?
Most desert streams are ephemeral
a. True b. False Indicate whether the statement is true or false
As the discharge of a stream increases, which of the following also happens?
A) Stream channels narrow, become shallower, and lose velocity. B) The rate of flow decreases. C) Channel width increases but channel depth decreases. D) Width, depth, and velocity all increase.
The type of volcanic eruption shown in this photograph is
A) a lava fountain.
B) collapse of a volcanic dome.
C) a fissure eruption.
D) a pyroclastic column.
E) a volcanic mudflow.