2/22 The unstretched length of the spring of modulus k = 1.2 kN/m is 100 mm. When pin P is in the position 0 = 30°, determine the x- and y-components of the force which the spring exerts on the pin. (The force in a spring is given by F kx, where x is the deflec- tion from the unstretched length.) %3D %3D

Find the minimum diameter of a (50 m)-long nylon string that will stretch no more than (1 cm) when a load of (70 kg) is suspended from its lower end. Assume that the Young modulus equals to 3.51*10 N/m? 3.35 cm 3.53 cm 35.3 cm 33.5 cm

This was rejected the first time. Can you please state why this is being rejected?

Two rods are identical in all respects except one: one rod is made from aluminum (Young's modulus 6.8 x 1010 N/m²), and the other from tungsten (Young's modulus 1.7 x 1011 N/m²). The rods are joined end to end, in order to make a single rod that is twice as long as either the aluminum or tungsten rod. What is the effective value of Young's modulus for this composite rod? That is, what value Ycomposite of Young's modulus should be used in Equation 10.17 when applied to the composite rod? Note that the change ALComposite in the length of the composite rod is the sum of the changes in length of the aluminum and tungsten rods.

Current Attempt in Progress To measure the static friction coefficient between a 2.53-kg block and a vertical wall, the setup shown in the drawing is used. A spring (spring constant = 467 N/m) is attached to the block. Someone pushes on the end of the spring in a direction perpendicular to the wall until the block does not slip downward. If the spring in such a setup is compressed by 0.0540 m, what is the coefficient of static friction? Number i eTextbook and Media Save for Later Units Attempts: 0 of 5 used Submit Answer