PHYS 157 Lecture Notes - Lecture 4: Thermal Expansion, Stress (Mechanics), Nylon
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Strain (or change) induced by stress (or force: thermal stress: Stress (or force) induced by change of temperature (via thermo expansion) While the expansion of water with temperature is approximately linear, with a fine scale it is not exactly linear, which has important consequences for life on earth. To stretch it by 0. 02% (this can be achieved by heating up by. How much tensile force shall be applied (cross section 3 cm^2, of marshmallow size) Y_steel = 200 gpa; y_marshmallow = 5 kpa: 1200kg equivalent of force, 120 kg, 12kg, 1. 2kg. If 0. 2mm diameter nylon fishing line is good for catching fish up to 2kg, what thickness of line would you need to catch a 50 kg fish: 0. 5mm, 1mm, 2mm, 5mm, 300mm. Y nylon = 3 gpa) g= giga = 10^9. Turning thermal expansion into a force/stress (length fixed) A steel rod of length l o is heated by temperature t.
