. Calculate the work done in stretching a wire of diameter 1.2 mm and length 4 m by 0.2 m. Young's modulus of the wire = 2 x 10¹¹ N/m².
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- A solid copper cube has an edge length of 89.1 cm. How much stress must be applied to the cube to reduce the edge length to 89 cm? The bulk modulus of copper is 1.4 x 10¹¹ N/m². Number i UnitsA man with a mass of 68.3 kg stands on one foot. His femur has a cross-sectional area of 8.00 cm2 and an uncompressed length 50.4 cm. Young’s modulus for compression of the human femur is 9.40 × 109 N/m2. What is the fractional length change of the femur when the person moves from standing on two feet to standing on one foot?B8
- 7. A wire of length 6.5 m with a cross-sectional area of 0.14 cm2 stretches by 4.5 mm when a load of 0.800 kN is hung from it. What is the Young's modulus for this wire?A 16.3 cm long tendon is found to stretch 2.11 mm when a force of 18.8 N is applied to it. If the tendon is round and as an average diameter of 5.13 mm, calculate the Young's modulus of this tendon.