When using a pencil eraser, you exert a downward force of 7.5 N at a distance of 2.2 cm from the hardwood-eraser joint. The pencil has a 3.4 mm radius and is held at an angle of 16° to the horizontal. The shear modulus of wood is 1.00 × 1010 N/m2 and the strain modulus is 1.50 × 1010 N/m2. By how much does the wood flex perpendicular to its length in meters? How much is it compressed lengthwise in meters?
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When using a pencil eraser, you exert a downward force of 7.5 N at a distance of 2.2 cm from the har...
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