True or false and explain why. In an isotonic contraction, skeletal muscles shorten to generate tension greater than the load so as to move the load, hence rate of contraction is directly proportional to the load.

Q: Common sports injuries result in the tearing of tendons and ligaments due to overstretching. If the…

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Q: )A strand of dragline silk is 6 um about in diameter, about 10% the diameter of a human hair. What…

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Q: s) The Young's modulus is a property of the material and does not depend on the size or shape of an…

A: The Young's Modulus of a material is a fundamental property of every material that cannot be…

Q: When using a pencil eraser, you exert a vertical force of 8.00 N at a distance of 2.00 cm from the…

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Q: In the wood industries, inclined blocks of wood are sometimes used to determine the…

A: Given Force P                  = 50 kN Angle θ                  = 65° Blocks A and B deep = 38 mm…

Q: The bar ABCD is fixed at A by a pin and supported by two wires as shown in fig. the bar is subjected…

A: The given figure is The figure for calculation be,   Let us consider the two-similar triangles,…

Q: (6) Explain why forces in muscles and joints are largest when their load is a long distance from the…

A: Explain why forces in muscle is largest when the load is long distance.

Q: The two 3.6° wedges shown are used to adjust the position of the column under a vertical load F of…

A: hi

Q: Young's Modulus: Elasticity in Length Arrange the following substances in terms of highest to lowest…

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Q: After a fall, a 97 kg rock climber finds himself dangling from the end of a rope that had been 16 m…

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Q: A cylindrically shaped piece of collagen (a substance found in the body in connective tissue) is…

A: Force, F = 0.0398 N Length, L = 2.03 cm Radius, r = 0.0791 cm Y = 3.1x106 N/m2

Q: When using a pencil eraser, you exert a vertical force of 6.00 N at a distance of 2.00 cm from the…

A: a. the cross sectional area of the pencil is The shear force on the pole act in perpendicular…

Q: Human femur bone was subjected to a uniaxial tension test. As a result of a series of experiments,…

A: (a) Elastic modulus, E:  The elastic modulus, also known as Young's modulus, represents the…

Q: Humans can bite with a force of approximately 791 N. If a human tooth has the Young's modulus of…

A: The change in the tooth's lenght is 7.23×10-6 m.

Q: A member is formed by connecting two steel bars shown below. Assuming that the bars are prevented…

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Q: A leg has 1.4 m shaft of bone with an average cross sectional area of 3x10-4 m². What is the amount…

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Q: A glass optical fiber in a communications system has a diameter of 9.0 μm. What maximum tension…

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Q: 1.7m y C

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Q: The mass of the uniform bar AB is100 gram. Calculate the couple C required for equilibrium if the…

A: Draw the free body diagram of the bar AB.

Q: answer should be in decimal. (Li

A: Givenm=86 kgL=16 md=7.8 mm=7.8×10-3 m∆L=2.0 cm=2×10-2 m

Q: Use the information for the fibula(Y-17.9GPA) in Figure to: (a) Caleulate the maximum tension a bone…

A: (a) Write the formula for the maximum stress the Fibula bone can withstand before fracture.…

Q: A mass of 35.0 kg is suspended from a steel wire of diameter 1.00 mm and length 11.3 m. How much…

A: Given that,Mass : m = 35 (kg)Diameter of wire : d = 1 (mm)   Length of the wire : L = 11.3 (m)The…

Q: The largest tendon in the body, the Achilles tendon, connects the calf muscle to the heel bone of…

A: Write the expression for young’s modulus of the material.

Q: Assume a human leg contains a 50cm long bone with an average cross section of 3cm2. By how much (in…

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Q: ________

A: In an isometric contraction, the force required to move the object is greater than the force or…

Q: For lifting a 19.3 kg object, calculate the compressive reaction force, F​V​​ , that is transmitted…

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Q: A bar of 25 mm diameter is subjected to a tensile load of 50 KN. Calculate the extension on a 300…

A: From the question, we can identify the following values:Diameter of the bar (d) = 25 mmTensile load…

Q: A wall climber of mass 85 kg dangles at the end of a rope. The rope has a diameter of 9.6 mm, and is…

A: mass= 85 Kg Length, L= 21 m radius, r= 4.8 mm ∆L= 3.2 cm

Q: You hang a 30 kg mass from the end of a rod that is 12 m by 2 mm by 2 mm. You observe that the rod's…

A: To solve this problem, we need to use the concepts of stress and strain. Stress is defined as the…

Q: Two bands of different composition were found in a room. Th have the same thickness and length, but…

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Q: Below are two conditions: a) a weighted held in the hand at 90°, and b) a cuff-weight wrapped around…

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Q: Explain one of the reasons why pregnant women often suffer from back strain late in their pregnancy.

A: Pregnant women often suffer from back strain late in their pregnancy because they lift their child…

Q: A U-shaped wire is dipped in a soap solution, and removed. A thin soap film formed between the wire…

A: Given data :- Weight mg = 1.5 × 10-2 N length of the slider l = 30 cm