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Unformatted text preview: Geology 3443 Spring 2006 Chapter 3 – Forces and Stress Sections 3.1 – 3.12 Force 1. What are the differences between force, mass, density and weight? What are the dimensions of each of these? What are the SI units? 2. How are forces related to accelerations? 3. What is the difference between a vector and a scalar? Which of the quantities in #1 & #2 are vectors and which are scalars? 4. What is equilibrium in the context of forces? If something is in equilibrium, are there any accelerations? What are geologic examples of equilibrium and non- equilibrium? 5. What is the difference between body forces and surface forces? What produces them? Can body forces produce surface forces? 6. Problem: Suppose you are a manager on a project to take a drilling core of the Earth’s crust. The core diameter is 10cm, you encounter the Moho at 30km and the average density of the crust is 3.0gm/cc. The acceleration of gravity is 9.8 M/sec 2 . What is the force in Newtons exerted by the crustal core on the mantle before the core is extracted? What is the force exerted by the mantle on the crustal before the core is extracted?...
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This note was uploaded on 01/03/2011 for the course GEOL 3443 taught by Professor Staff during the Fall '08 term at UT Arlington.
- Fall '08