Calculate the elongation in mm and the strain

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Reference no: EM138518

Q1. A 5-kg load is fastened vertically to the end of steel wire 0.5m long and 0.0006 sq.cm in cross-section. Hanging from the bottom of this weight is alike steel which supports a second load of 40 lb. For each wire, calculate the elongation in mm and the strain. What is the total elongation of wires?

Q2. In 1847, Dutch scientist Christoph Buys-Ballot developed a test of the Doppler shift. He had a trumpet player sound a note at 456 Hz, whereas riding on a flatcar pulled by a locomotive. At the same time, the stationary trumpeter played the same note. Ballot heard 3.0 beats per second. How fast was the train moving toward him?

Reference no: EM138518

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