What is the speed of a 4-kg block when its momentum is 12 kg?m/s?
A. 4 m/s.
B. 3 m/s.
C. 48 m/s.
D. 12 m/s.
Answer: B
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If gradient were the only factor controlling the erosive power of these streams, what should happen to the position of the mesa edge with time?
The following questions are based on Figure 39-4, a section of USGS “Dane Canyon, Arizona” quadrangle below, showing the southern edge of the Mogollon Mesa (34°24'33"N, 111°10'52"W), formed by a nearly flat-lying layer of resistant rock (you can view this map in color by going to the Lab Manual website or by scanning the QR code for this exercise).
Multicelled organisms developed before single-celled organisms. Indicate whether the statement is true or false
A language branch is a collection of languages related through a common ancestral language that existed long before recorded history
Indicate whether the statement is true or false.
To what does the concept of acceptable risk refer?
A) the fact that natural hazards always have risks B) the risk that a prediction of an event is likely to be inaccurate C) the risk that is inherent in predicting natural hazards D) the risk that society or individuals are willing to endure