For sound that travels at 340 m/s, an explosion that happens 340 m away is heard in
A. 20 s.
B. 10 s.
C. more than 20 s.
D. 1 s.
Answer: D
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The ____ classification system determines moisture availability at the subregional scale
a. Köppen b. climate c. Thornthwaite d. precipitation
We define the direction of an electric field to be the direction of force on
A. a negatively charged particle. B. any charged particle. C. a positively charged particle. D. none of the above
____________________ involves removing dissolved salts from ocean water or from to increase supplies of freshwater
Fill in the blanks with correct word
Which of the following is not related to seismographs?
A. It is capable of recording P-waves S-waves, and surface waves. B. Using a single seismograph, it is possible to tell how far away the station is from the earthquake's epicenter. C. It is a device that can record seismic waves traveling along and through the Earth. D. It creates a record that can be used to identify the magnitude of the earthquake. E. All of these choices are correct.