Seismograms are the actual machines that record the earthquake, and the record of the event is recorded on a seismograph.
Answer the following statement true (T) or false (F)
False
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A sustained flow of water in a hydraulic circuit needs a pump. Similarly, the flow of charge in an electric circuit needs
A. resistance. B. voltage. C. current. D. none of the above
Cultural preservation is the effort to
A) preserve the existing culture for future generations. B) document, repopularize and rejuvenate traditional cultures. C) invest in museum and religious institutions. D) support music and art programs in schools.
Alfred Wegener is well known for hypothesizing that ____
a. mountain ranges only exist where erosion is very weak b. new oceanic crust is formed at subduction zones c. the magnetic poles have reversed on occasion during geologic time d. over time, the continents change their geographic position e. the inner core is molten
Light travels 300,000 km/s. Many communications satellites are in geosynchronous orbit at about 36,000 km above the earth's surface
If you talk to your friend on the other side of the world via a geosynchronous satellite using Skype or your phone, what is the minimum time delay there will be between you and your friend in your conversation? A) .48 seconds B) 8.3 seconds C) .12 seconds D) .24 seconds