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Exams are administered on a computer in a lab style setting. Final results are available immediately after completing the exam. CLEP tests are primarily multiple-choice exams (though some include fill-in or ordering questions, and one College Composition exam has an essay section) which are scored on a scale from 20 to 80.
Recently REA has focused on providing digital test banks through its online study center. The company has specific test-prep modules for some of America's most well known standardized tests, including the GED test , the College Board's CLEP credit-by-exam and Advanced Placement exam programs, and the ACT college admissions test.
Exams are offered twice a year, once in April and once in October, and are discipline-specific. [3] With the exception of the Structural exam, each exam is eight hours long, consisting of two 4-hour sessions administered in a single day with a lunch break. There are 40 multiple-choice questions per session.
The goal of mechanical theory is to solve mechanical problems, such as arise in physics and engineering. Starting from a physical system—such as a mechanism or a star system—a mathematical model is developed in the form of a differential equation. The model can be solved numerically or analytically to determine the motion of the system.
Engineering problems are generally tackled with applied mechanics through the application of theories of classical mechanics and fluid mechanics. [4] Because applied mechanics can be applied in engineering disciplines like civil engineering, mechanical engineering, aerospace engineering, materials engineering, and biomedical engineering, it is sometimes referred to as engineering mechanics.
The relation between mechanical stress, strain, and the strain rate can be quite complicated, although a linear approximation may be adequate in practice if the quantities are sufficiently small. Stress that exceeds certain strength limits of the material will result in permanent deformation (such as plastic flow , fracture , cavitation ) or ...
Young's modulus is the slope of the linear part of the stress–strain curve for a material under tension or compression.. Young's modulus (or Young modulus) is a mechanical property of solid materials that measures the tensile or compressive stiffness when the force is applied lengthwise.
Classical mechanics was traditionally divided into three main branches. Statics is the branch of classical mechanics that is concerned with the analysis of force and torque acting on a physical system that does not experience an acceleration, but rather is in equilibrium with its environment. [3]
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