A steel measuring tape measures exactly 100 ft at 60°F when subjected to a pull of 20 lb. If the tape is 1/32 inch thick and 1/2 inch wide, what correction should be made in reading the tape if it is subjected to a temperature of 120°F and a pull of 30 lb? E (steel) = 30x106 psi, a (steel) = 6.5 x 10-6 in/in/Fº

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Q: Define vibrating wire piezometer.

A: Vibrating wire piezometers are used to regulate the pressure of pore water in soils.

Wind Energy

Wind energy is a renewable energy source that is used to generate electricity by wind power. The term, wind power, means utilization of kinetic energy of wind to generate electricity. Wind energy is termed renewable source energy because it can never be exhausted. There are other renewable energy sources, such as solar energy, geothermal energy, hydropower energy, and so on. All of them contribute to power the thermal energy stations to generate electricity.