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Homework Answers
- The epicentre is far from the seismometer recording the earthquake.
Locating the epicentre of an earthquake. Seismic records can be used to determine the location of the epicentre of the earthquake. The time lag between the arrival of the P and S waves at a seismometer station can be used to determine the distance of the epicentre from the station.
- Mercalli Intensity
the energy that is released by an earthquake is often calculated using the “Mercalli scale” (actually it is a modified Mercalli-Cancani-Sieberg scale). It is one of the first scales that were elaborated in order to evaluate the intensity of seisms, when more precise instruments were still not available (the first version of the Mercalli scale dates back to mid 1800) even though it is still commonly used today.
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A large lag time signifies what about earthquake? Signifies a s
Earthquake Lab: Locating the Epicenter, Determining the Magnitude, and Calculating the Time of Earthquake The goal...
Earthquake Lab: Locating the Epicenter, Determining the Magnitude, and Calculating the Time of Earthquake The goal of this lab is to learn how seismograms are used to locate the epicenter of earthquakes, determine earthquake magnitudes, and to calculate the origin time of earthquakes. A seismogram measures the amount of shaking caused by earthquake waves. The seismogram first records the arrival of P-Waves (Primary), followed by the arrival of the S-Waves (Secondary). The S-P interval is the time difference between the...
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Write to answer the following
two questions:
1. On Page 133, you will see a very brief description of what
our earth will look like in 2050. Based on the information given,
what do you think our earth will look like at that time? Why do you
think so?
2. Mount St. Helens in Washington State erupted violently in
1980. The Loma Prieta earthquake in California occurred in 1989.
How far apart are these two points on a map? (You...
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The Richter scale is used to measure the intensity of earthquakes, where intensity corresponds to the amount of energy released by an earthquake. If an earthquake has an intensity of x, then its magnitude, as computed by the Richter scale, is given by the formula R(x) = log X where is the intensity of a small measurable earthquake. (a) An earthquake in city A had a magnitude of 4.0 the Richter scale and an earthquake in city B measured 5.0....
An electron is released from rest at a large distance ro from a fixed nucleus of charge Ze. Assume the electron is a classical point charge with speed v «c and that the radiation reaction force on the electron is negligible. (a) What is the angular distribution of the emitted radiation, dP/dN? Express your answer as a function of i (the magnitude of the electron's acceleration), o (the angle between v and the vector that points from the electron location...
Write to answer the following
two questions:
1. On Page 133, you will see a very brief description of what
our earth will look like in 2050. Based on the information given,
what do you think our earth will look like at that time? Why do you
think so?
2. Mount St. Helens in Washington State erupted violently in
1980. The Loma Prieta earthquake in California occurred in 1989.
How far apart are these two points on a map? (You...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.9 MeV (9.9 x 100 eV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum of the alpha particle? (You may assume its speed is small...
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