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The medium by which energy does work |
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A physical body or substance that occupies space and can be perceived by one or more sense |
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A transfer of energy from one system to another |
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The capacity of a physical system to do work |
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Two or more bodies of matter that are sufficiently close together that weak force interactions cause them to deform or accelerate |
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Force of rotation acting on bodies in contact to resist sliding between the bodies |
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The force of static friction resists movement |
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At impending motion, the force of static friction reaches its maximum value |
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Once motion starts the force of friction is reduced to a constant kinetic friction |
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Measure of the tendency of force to cause a body to rotate about a point/axis |
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The perpendicular distance from the line of action of a force to a point or axis of rotation |
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Magnitude of a Moment (Torque) |
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The product of the magnitude of a linear force tending to cause rotation about its moment arm |
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Point about which all of the bodies points of mass are equally distributed in space |
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The point about which the torques created by the weight of each part of the body are balanced |
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The effective distance of the mass of a body from its center of rotation |
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