(5%) Problem 1: During a wrestling match, a 115 kg wrestler briefly stands on one hand during a maneuver designed to perplex his already moribund adversary. Randomized Variables 1 = 37.5 cm r =2.45 cm m = 115 kg @theexpertta.com - tracking id: 9N69-4E-C3-45-84AD-31941. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. * By how much does the upper arm bone shorten in length in meters? The bone can be represented by a uniform rod 37.5 cm in length and 2.45 cm in radius with a Young's modulus of 1.6 x 1010N/m2. Grade Summary AL = Deductions 0% Potential 100%(5%) Problem 3: A block of mass m = 290 kg rests against a spring with a spring constant of k = 520 N/m on an inclined plane which makes an angle of O degrees with the horizontal. Assume the spring has been compressed a distance d from its neutral position. Refer to the figure. m Otheexpertta.com-* 25% Part (b) Denoting the coefficient of static friction by , write an expression for the sum of the forces in the x-direction just before the block begins to slide up the inclined plane. Use defined quantities and g in your expression EF = ka + mg sin(0) - mg cos(0) X Attempts Remain Feedback: is available. & 25% Part (c) Assuming the plane is frictionless, what will the angle of the plane be, in degrees, if the spring is compressed by gravity a distance 0.1 m? & 25% Part (d) Assuming 0 = 45 degrees and the surface is frictionless, how far will the spring be compressed, d in meters? All content @ 2022 Expert TA, LLC(5%) Problem 11: Suppose a spring has a spring constant ky = 560 N/m as the spring is stretched from x = 0 to x/ = 35 cm. The spring constant then changes to k2 = 360 N/m as the spring is stretched to x2 = 77 cm. From x2 = 77 cm to x3 = 86 cm the spring force is constant at F3 = 140 N.A 20% Part (b) Use the area under the curve to calculate the work, in joules, necessary to stretch the spring from x = 0 to x/. A 20% Part (c) Write an equation for the work done in stretching the spring from x, to x2. A 20% Part (d) Calculate the work done, in joules, in stretching the spring from x, to x2. A 20% Part (e) Calculate the work, in joules, necessary to stretch the spring from x = 0 to x3