approximately 25 N of tensile force per square centimeter of cross-sectional area. Calculate the stress.
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Vertebrate muscle typically produces approximately 25 N of tensile force per square centimeter of cross-sectional area. Calculate the stress.
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- A firefighter weighs 730 N. She wears shoes that each cover an area of 309cm2. (a) What is the average stress she applies to the ground on which she is standing? (b) How does the stress change if she stands on only one foot? Show working equations for both (a) and (b). Answer must be in kPa.If the allowable stress is greater than the actual stress, the material is safe. True FalseAssume a human leg contains a 50cm long bone with an average cross section of 3cm. By how much (in micrometres) does the bone shorten when the entire body weight of the person is supported by that one leg. The body weight is 700N and the Young's modulus for bone is 1.8 x 1010 Pa Answer:
- B5Example 2: the ankle joint therefore pushes upward on the bottom of the tibia with the force of 2800 N while the top end of the fibia must feel a net downward force of approximately 2800 N the fibia has a length of 0.40m. an average inner diameter of 1.3cm and average outer diameter of 2.5cm find the compressive stress in the tibia? 750 N 2030 N 25 cm Cros secionA 10.2 m long wire with a cross-sectional area of 0.126 cm? stretches by 0.196 cm when a tensile force of 6250 N is applied at its ends. What is the Young's modulus for the wire?
- A rope of length 40.0 meters and 5.0 mm in diameter elongates by 1.0 meters when supporting a 50.0 kilogram mountain climber. What is the Stress and strain experienced by the rope?Humans can bite with a force of approximately 796 N. If a human tooth has the Young's modulus of bone, a cross-sectional area of 1.1 cm2, and is 1.9 cm long, determine the change in the tooth's length during an 7.96 ✕ 102 N bite. mQI/ A tension force of 30 kN was subjected to 2.5 m long pipe which has an inside and outside diameter of 70 mm and 100 mm, respectively, and the pipe length elongate by 0.5 mm. Determine the tensile stress and the elongation percentage.
- The figure shows the stress-strain curve for a material. The scale of the stress axis is set by s = 300, in units of 106 N/m². What are (a) the Young's modulus and (b) the approximate yield strength for this material? Assume & = 0.0010. (a) Number (b) Number 1.5E11 Hint 3E8 eTextbook and Media Stress (10 N/m²) E Strain Units 28 N/m^2 or Pa Units N/m^2 or Pa SUPPORTRubber has a Young's modiles of 1.5 x 10^8 Pa. If someone were to apply a force of 3 x 10^10 N to the side of a 12 m^3 cube, what would the strain on the cube of rubber beTwo circular rods, one steel and the other copper, are joined end to end. Each rod is 0.750 m long and 1.50 cm in diameter. The combination is subjected to a tensile force with magnitude 4000 N. For each rod, what are (a) the strain and (b) the elongation?