Geography, 13.02.2020 18:49, gutierrezaandrea56
Earthquakes produce several types of shock waves. The most well-known are the P-waves (P for primary or pressure) and the S-waves (S for secondary or shear). In the earth's crust, the P-waves travel at around 6.5 km/s while the S-waves move at about 3.5 km/s. The actual speeds vary depending on the type of material they are going through. The time delay between the arrival of these two waves at a seismic recording station tells geologists how far away the earthquake occurred.
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Geography, 23.06.2019 14:00, gilberta14
What statement about charlemagne is not true? a. charlemagne's empire collapsed during his rule b. charlemagne sent missionaries throughout europe c. charlemagne encouraged the arts and education d. charlemagne ruled much of western europe a. charlemagne's empire collapsed during his rule
Answers: 1
Geography, 24.06.2019 05:00, reddmeans6
How did geography influence the settlement of early africa.
Answers: 1
Earthquakes produce several types of shock waves. The most well-known are the P-waves (P for primary...
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