A ruler is accurate when the temperature is 25 °C. When the temperature drops to −14 °C, the ruler shrinks and no longer measures distances accurately. However, the ruler can be made to read correctly if a force of magnitude 1.2 x 103 N is applied to each end so as to stretch it back to its original length. The ruler has a cross-sectional area of 1.6 ξ10−5 m2, and it is made from a material whose coefficient of linear expansion is 2.5 ξ10−5 (C°)−1. What is Young’s modulus for the material from which the ruler is made?
A ruler is accurate when the temperature is 25 °C. When the temperature drops to −14...
A steel railroad track has a length of 24 m when the temperature is 8◦C. What is the increase in the length of the rail on a hot day when the temperature is 36 ◦C? The linear expansion steel is 11 × 10−6 (◦C)−1. Answer in units of m. 004 (part 2 of 2) 10.0 points Suppose the ends of the rail are rigidly clamped at 8◦C to prevent expansion. Calculate the thermal stress in the rail if its temperature...
Inside the house where the temperature is 20∘C20∘C, we measure the length of an aluminum rod with a micrometer MADE OF STEEL. (A micrometer is a device which measures distances very accurately.) We find the rod to be 10.0000 cm long. If we repeat this measurement outside where the temperature is-13.7 ∘∘C, what result would we obtain? Caution: the size of the micrometer is also affected by the temperature, so we no longer obtain the true length of the rod...
Problem 1 A composité beam made of concrete (c) and six steel Steel bars (s) bars is shown below. The steel bars run through the concrete from the top to bottom and have the same length as the concrete block. Each steel bar has a diameter of in. Calculate the cross- sectional area of the concrete and the area of all the steel bars. If the temperature rises by AT 65 °F, determine the normal stress in the steel bars....
А 6061-T6 aluminum tube is used as a sleeve for a steel post Tool L2 as shown. When not loaded, and at a temperature of 60 F, both the tube and post have a length of 24 in. The system is subjected to a load P and the temperature is increased to 115 F Assume that both the tube and post are rigidly connected to the rigid cap. Determine the load P required to restrict the system's length change to...
Class Test-II Phy-105-02 Fall 2019 Section-III: (Problem solving each carrying 2 marks; 2X5 =10) 21. Find the Young's modulus (Y) of the steel rod of 0.01 m long and a cross sectional area of 0.001 cm', elongates 0.1% when supported by a 100 kg load, hung from the other end. 22. Find the speed of water at the narrow end of a pipe through a cross section of 0.001 m when water flows from the other end of area 0.002...
Chapter 13 Temperature and Kinetic Theory D) As shown in the figure, a bimetallic strip, consisting of metal G on the top and metal on the bottom, is rigidly attached to a wall at the left. The coefficient of linear thermal expansion for metal G is greater than that of metal H. If the strip is uniformly heated, it will A) curve upward. B) curve downward. C) remain horizontal, but get longer. D) remain horizontal, but get shorter. E) bend...
Problem 4.79 When the temperature is at 30° C, the A-36 steel pipe fits snugly between the two fuel tanks. When fuel flows through the pipe, the temperatures at ends A and B rise to 130° C and 80° C, respectively. The modulus of elasticity for the material is 200 GPa and the coefficient of thermal expansion is 12 x (106/C. 150 mm 0 10 mm Section a-a 6 m 4l Part A If the temperature drop along the pipe...
Part C - Calculate the load P required for a length change of 0.01 in A 6061-T6 aluminum tube is used as a sleeve for a steel post (Tool L2), as shown. When not loaded, and at a temperature of 60°F, both the tube and post have a length of 24 in The system is subjected to a load P and the temperature is increased to 115°F. Assume that both the tube and post are rigidly connected to the rigid...
QUESTION 4 a) The human femur bone breaks if compressive stress greater than 1.50 * 10 N/m2 is imposed on it. Assuming the Young's modulus for bone is 1.50 * 1010 N/m2, determine 1) the maximum force that can be exerted on the femur bone in the leg if it has a cross-sectional area of 4.90 x 10-4 m2 by how much does a 0.400 m long bone shorten if this maximum force is applied compressively to the bone. (6...