give me correct answer!«<«<«<«<«<«<«< Calculate the maximum bending moment in a simply supported beam with a span of 6 meters, subjected to a uniformly distributed load of 5 kN/m. Use the formula for maximum bending moment M_maz = (WL ^2)/8 where w is the load per unit length and L is the span of the beam. >>>>>>>....
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- Proof that the energy stored in the compact bone is given by E = AL0 (Sb) ^ 2 / 2γ. When Sb is bone stress. *The pole in the figure is a a 90° bend in a power line and is therefore subjected to more shear force than poles in straight parts of the line. The tension in the two wires at the top of the pole is 3.5 × 104 N, and both wires are at an angle of 80° with respect to the pole. The pole is 15 m tall, has an 16 cm diameter and can be considered to have half the strength of hardwood (hardwood has a Young's modulus of 1.5×1010 N/m2 and a shear modulus of 1×010 N/m2). a) First ignore the guy wire (Tgw). Calculate the compression of the pole, in millimeters. b) Still ignoring the guy wire, Find how much it bends in mm to the right. c) Now find the tension in the guy wire used to keep the pole straight if it is attached to the top of the pole at an angle of 30° with the vertical in Newtons. (The guy wire must be in the opposite direction of the bend.)A box with mass 178kg is supported by the cable system at B. Chord AB has a length of 1.2m and the force that develops in the chord is 3130N The horisontal distance between points A and C is 1.7m. Determine the force that develops in chord BC and the vertical height y and complete parts (a) and (b) below.
- A steel cable with a cross-sectional area of 3.00 cm^2 has an elastic limit of 2.40x10^8 Pa. Find the maximum upward acceleration that can be given to a 1200 kg elevator supported by the cable of the stress is not to exceed one-third of the elastic limit.A rubber band is stretched by 1.0 cm when a force of 0.35 Nis applied to each end. If instead a force of 0.70 N is appliedto each end, estimate how far the rubber band will stretchfrom its unstretched length:(a) 0.25 cm. (b) 0.5 cm. (c) 1.0 cm. (d) 2.0 cm. (e) 4.0 cm.During a dunk, a basketball player will elevate theircenter of mass 70 cm (or more) while jumping off of one leg. What is the strain energy contribution to the energy required to elevate the center of mass given the following parameters? How much energy has to be contributed by active muscle contraction? mass = 82 kg, K leg = 35000N/m, dispacement = 0.11 m.
- A 40-kg boy jumps from a height of 3.0 m, lands on one foot and comes to rest in 0.10 s after he hits the ground. Assume that he comes to rest with a constant deceleration. If the total cross-sectional area of the bones in his legs just above his ankles is 3.0 cm2, what is the compression stress in these bones? Leg bones can be fractured when they are subjected to stress greater than 1.7 × 108 Pa. Is the boy in danger of breaking his leg?True or False: A cylindrical rod with a cross sectional area of 0.1 m^2 which is subjected to a tensile force of 20N at each end would experience a tensile stress of 200 Pa?A spring, with a spring constant of 750 N/m, is hung vertically from the ceiling. If a mass of 500 kg is added to this spring, how much will it elongate?