Look at the map of the United States. Which of the following would be a reasonable estimate for the amount of the U.S. coastline
that is in the "Severely Eroding" category?
*Remember, these are estimates and should fall within an acceptable range.
A. less than 5%
B. 10-20%
C. 70-85%
*Remember, these are estimates and should fall within an acceptable range.
A. less than 5%
B. 10-20%
C. 70-85%
2 answers:
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To solve this problem we will proceed to define the Period of a stick, then we will define the frequency, which is the inverse of the period. We will compare the change suffered by the new length and replace that value. The Time period of meter stick is
Here,
L = Length
g = Gravity
At the same time the frequency is
Therefore the frequency in Terms of the Period is
If bottom third were cut off then the new length is
Replacing this value at the new frequency we have that,
Finally,